When grid use popup edit, click cancel or close, the top row removed.

I would really like to see a Gauge control similar to what is available through the Telerik Silverlight controls.

Almost all data drive UI needs a simple pagination control.  I've seen other requests ask for other controls to have pagination (like grids) but I just want a properly styled pagination control that could be used to either control another UI control (grid, table, etc) or simply just be hyperlinks.  

is the kendo ui supported in tablet?

To support various language,
I think KendoUI need language pack system.

Current globalization supports only currency, number format and few label for calendar.

It's so hard to change default english label for buttons and messages.
Sometimes, It's hardcoded in kendo.js file.

It's much better to handle such things in one language file.
Not with individual configuration.

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.

Listview scrolling becomes very laggy after more than 30 or so items are bound via endless scrolling or pull-to-refresh. In the article below by Chris Love he discusses Facebook's decision to abandon html5 for native apps and states the fault isn't necessarily with html5. He suggests techniques such as removing DOM elements when the markup is scrolled far out of view and not reachable with 2-3 flicks that could drastically improve performance for scenarios such as the Facebook infinite scroller. Would it be possible to implement a performance-enhancing technique such as this as a built-in feature of the KendoMobileListView scrolling? I have already made it a practice to never use With Blocks in my ListView item templates by assigning { useWithBlock: false } and would appreciate any other performance optimization options.

http://professionalaspnet.com/archive/2012/12/27/Don_2700_t-Make-Facebook_2700_s-Mistake_2C00_-Architect-for-the-Modern-World.aspx

Add an Image Properties section to the image manager dialog, similar to the one in RadEditor for ASP.NET AJAX: http://demos.telerik.com/aspnet-ajax/editor/examples/xhtmlvalidatortrackchangesformatcodeblockdialogs/defaultcs.aspx

It would be awesome if you added masking to input fields, similar to what you've done with validation. Many times I need to add formatting to the display of a field that and I don't want to store the extra characters associated with the on screen formatting. Formatting for telephone numbers, email addresses, currency are the ones immediately useful. Although other libraries exist for these, it would be nice to consolidate them into a single library!

It seems Kendo UI mobile already covers Android and iOS.  Are there plans to incorporate Windows 8 into the roadmap?  It would be very appealing to developers if there is one framework that can be used across all platforms.  

a grid with an editable column will show if there is no data in datasource. 

sparklines are important data visualization that is missing. would be great to have it. you can take inspiration from http://omnipotent.net/jquery.sparkline/#s-about

I'd like to use Kendo, but the available themes are too restrictive, much less vibrant that the MVC themes.  And the Themebuilder is not adequate to extend or alter them.  Can you add richer themes to Kendo?

Add similar functionality as AngularJS has:
http://mgcrea.github.com/angular-strap/

Telerik has a graphical timepicker control that we're using on desktop applications (WinForms). We'd like something similar for web-apps deployed to our intranet/extranet. The essential features for us are the AM|PM toggle; the display of the 12 hours in several columns and the ability of the developer to define/limit the minutes interval (e.g. 15, 30, 45, 00) in the bottom pane. We are using 15-minute intervals and so the current Kendo dropdown-list timepicker would have to contain 96 items. The Telerik visual approach avoids a long scrolling list:

http://www.telerik.com/products/winforms/editors.aspx#timepicker

Posted 1 hour ago (permalink)

Another important thing for upload element is file list template. Somethink like 

<script id="template" type="text/x-kendo-template">
     <div>#= filename #, [#= filesize#]  
          <span class="menu">
          <ul>
               <li>#= button_delete #</li>
               <li><input class="k-button" value="Insert into text" onclick="insert()"></li>
               <li><input class="k-button" value="Copy path to bufer" onclick="copy()"></li>
          </ul>
          </span>
     </div>
</script>

This way i can path either tmplate ID or template object and affect list of files. 

Because upload is a very important thing nowadays and usually require more options than just upload.

For example. I have article and I attached 3 files to it. Now i open article for edit because I want to add 2 more files but delete one. Of course i could make separate list of already uploaded files. But better would be to give to this UI element list of files to be populated on initialization.

Add ability to insert SVG html into Kendo Chart areas like the title. Example would be ability to add my own TSPAN to the title to help style it more.

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.

There is no way to use tree as a column in a grid.
A TreeGrid would use hierarchical datasource where one column would show nodes and other columns would show node properties.

Here is an example (from Sencha Ext JS)
http://dev.sencha.com/deploy/ext-4.1.0-gpl/examples/tree/treegrid.html