My number one suggestion for Kendo UI would be a Kendo UI kind of bootstrap / foundation. 

We all know Twitter Bootstrap and Zurb Foundation. The main advantage of these html frameworks are in my opinion:

#1. Rapid development of layouts
#2. html elements are supported (forms, tables, buttons)
#3. Reponsive (and in some cases fluid) grid. 
#4. Usuable threwout the internet (ie, firefox, chrome, safari etc).
#5. User Friendly to start and work with.

In the first place I am not suggesting to integrate one of those (that would be my second..) My first suggestion is, make one of your own (fork it or what ever? to start) So that we have not only a html foundation of the project, the elements are also fully integrated with each other. So you can have one uniform theme threw out the whole website / project.

So.. That is my first suggestion, and ofcourse the second one related to this one is, when you guys dont want to create your own, integrate a (lets call it css/html framework) that is fluid (because in my opinion, kendo ui is really for business software, and with fluid width you can have more information on your screen..) 

Hopefully you take this suggestion in consideration. It would really make a different!

http://www.telerik.com/help/silverlight/radexpressioneditor-overview.html

With the Silverlight controls, one can make the charts scrollable. This is a great feature for adding tons of data without making the bars in a chart so small you can't click on them, and would make an excellent addition to an already great product.

I'd really appreciate some kind of action bar on Android devices. For now the android theme is mostly just black and white and not really appealing (the navigaion and title).
Furthermore Navigation would be much more intuitive when using the new 4.1 ActionBar with back(icon) and view-title. 
A little makeover of the buttons would also be nice ;)
http://developer.android.com/design/patterns/pure-android.html

We have built some really cool stuff with Kendo UI Mobile.  We want to present or Apps on regular web pages with non-HTML5 browsers.  Maybe in an IFRAME like Facebook.  We need graceful degradation functionality.  Any interest?

Wouldn't it be nice to be able to filter a field as a property of a series? You could populate stacked and grouped column charts with a single datasource, without having to parse through it manually with js.

The possibility to have both edit modes in a grid. I want to (for example) instant edit my columns in the grid, but also have a (custom) popup window wich will allow me to edit more fields not included in the grid (but still in the datasource ofcourse).

This causes Kendo grid's javascript dataItem method to fail since it is trying to access a blank array.  The wrapper is useless to me without this.

Adobe AIR imposes some security restrictions on Javascript code written in certain ways/styles (e.g., use of "eval" and "Function" declaration inside code, which are used in KendoUI), but offers a fairly complex implementation facility (called the "sandbox bridge") so developers can work around these security restrictions... Please provide Adobe AIR/Javascript developers "BEST PRACTICES" articles/tutorials on how to code the KendoUI widgets that are incompatible with the Adobe AIR security restrictions.

Kendo UI is great but it does not work with the integrated webkit in Qt.

This would be great. It is kind of what I had in mind when I suggested this: http://kendo.uservoice.com/forums/127393-kendo-ui-feedback/suggestions/2662536-add-grid-column-filters. I currently use this type of filter where the filter is just a free text field and upon blur or enter, it runs the filter. having control over the type of filter syntax used would be great ... so that it is Linq, List, Oql, or custom string compatible. This is a common feature in the Telerik Grid when used in client mode...

Please add a close event to the ActionSheet.  This could be used in conjunction with the open event to allow the user to use the back button on Android to close the ActionSheet.

This is still not fixed I did a detailed walk through of your code and found this:

Let me start by saying I am honestly trying to help. So unlike many of the other posts i have read I would rather you listen and not just tell me we are wrong... because what im saying is in both senerios below is out side of the programmer control, and the template your built is well not ready for them.

In short the template (though great it is) for the data-grid is deeply flawed and reliant on perfect data or it fails. I am of the general mind set that the templates should work for the most messed up senerior's, but taking that back a step they should work for simple ones also. 

I also reference line numbers in the keno.web.js file

I have mocked up this example based off of your example. 
Condensed json data call: (Not returning null values)  http://jsfiddle.net/3zhqx/1/ 

Resaults: Uncaught ReferenceError: age is not defined 

Pulling data from other locations where you cant controll the formatting of the incoming data json data call: (IE Web 2.0)
 http://jsfiddle.net/EyCZd/2/  No Error but the template does not pull the error.

http://jsfiddle.net/qqskQ/3/ 
Uncaught ReferenceError: Name is not defined  


Resolustion: (Many Options,but all have costs...)
21309: 
 rowTemplate = kendo.template(rowTemplate, settings);

This builds the row template:

21333-21395 Template builder.
In this you reference the data with a with clause and then fill those values from the data. True this is the most expedient but also the most fragile. It causes both of the error above.  It means that the system can not handle for columns that you cant control the naming of, or if the json data is missing a column or if the column is puposly missing to save space bacause its nulle.

Jquery ran into the smae issue and return null in the exsampel. http://api.jquery.com/template-tag-if/  read the big header at the top...

To fix this you can loop through the columsn try to ge the data and then build a html set acordingly. Personaly this may seam longer , but the computed total cyles would be less then the total computed cost fo the next one item. The last option is up for debate. 

The second option is to add to the current builder a way to check for undefined opjects... this is exceedingly difficult seeing as to how tightly coupled and fagle that particular line of code is. 

This is how they handled for it in another template in your code:
10675  { data.title || ""} insted of with(data)...... e(title)

I tried to manually do this, but i have only been a java programmer for two months and lack all the verbiage needed to write the code well... that and it was 3 in the morning. 

The third option is what i had to do out side of the control, but its an unneeded mess fix that makes me pass a 1/3 more data to handle for this. Almost a deal breaker for me.

I had to fix all incomimng feed and gerate a fixed column name and colection, and I had to make sure all my jason and my feed have every  row  have every column.... when dealing with massive data sets that sucks both on bandwidth and cpu. and column in the. That is why i went mvvm in the first place to deffer costs...

So back to the fix you could when binding the data... I think 4601 or there about... check to make sure each line has every row and fit it in as null if it does not. the reason this may be the fastes is because your already looping through all the data on every call and sooooo you can add in at 4723 I think.... that would allow you to add in a null object with the correct name into the data.

I think the last one is the right idea but i ren out of time to trouble shoot the issue nay more.

The use case is this: 
User is either pulling data from a myriad of sources and union the data so the rows may not always match, but thats ok because its web 2.0... say netflix and blockbuster feeds... bad example you can shoot it down but the need is there.

user is managing lots of data and needs to save bandwidth and cpu by processing less data. (got to love and hate the cloud.) so he can not always send null filed in json.

User is geting data from a source that is not known or well defined, and needs to pass it right to the client... for whatever reason..  or user is getting dynamic columns from data and may not know what the columns are or how well they are formatted...


Hope this helps.

Sorry for the spelling im busy got to run.

Other posts on same issue:
http://www.kendoui.com/forums/ui/grid/grid-with-template-error-uncaught-referenceerror-sum-is-not-define.aspx#2232854

Unit tests are usually a part of the complete solution. If I pay for the code, I'd like to be able to make minor changes and verify they work.

Add ability to have graph "scroll" like a stock ticker. This would allow for the graph to dipslay large X axis values while still contained smaller graph area.  This woudl also help with displaying dataviz on mobile applications as it would give virtual space to the smaller devices.

kendoui grid batch editing not working with jquery 1.8.0

It would be nice to use the Kendo UI Editor to manipulate and style tables, add/remove rows and columns, just like MS Word does.
Together with some friends we discuss this issue and we saw that it is a very important and useful feature for the most end-users, because they are comfortable working with MS Word and they notice that fault when using web applications.

Similar to http://demos.devexpress.com/ASPxEditorsDemos/ASPxDropDownEdit/DropDownEdit.aspx

Current when using the HierarchicalDataSource you can only load one level of data at a time. I would like to be able to pre-populate the entire tree (but have the ability to refresh it via remote data, should I so need).