KendoUI has window widget, but it's too simple, I suggest just like jbox or artDialog.
jbox:http://kudystudio.com/jbox/
artDialog:http://www.planeart.cn/demo/artDialog/index.html

Maybe CSS3 can do more nice text,textarea,button, but in IE7&8, can not support border-radius,box-shadow,text-shadow, so we must use picture to do this. I want to all the form element seems the same in KendoUI support browsers.
Just like: Uniform,Niceforms,Jquery FormOne,jqTransform,jNice and so on...

Also added to the file manager and editor will be perfect

http://www.kendoui.com/forums/ui/general-discussions/touch-counterpart-to-mouse-hover-touchhold.aspx

I would really like a ProgressBar control. The reason why I want a progressbar control in kendo ui is so that the look and feel of my application is consistent throughout.

The minimize function does not work when added to a kendoWindow. A North pointing triangle is added to the title bar bu nothing happens when clicked.

Also restricting the Maximize to the parent containier (DIV) as suggested by another user should be implemented soon.

ASP NET MVC provides jquery.validate.unobtrusive validation that, using jQuery validation, let us set validation attributes into model class.
http://weblogs.asp.net/mikaelsoderstrom/archive/2010/10/06/unobtrusive-validation-in-asp-net-mvc-3.aspx
Would be nice if it may work also with kendo ui validation.

You have datepicker.
You have timepicker.
Why not datetimepicker?

A single input box that selects both a date and a time.

Should be fairly straightforward, it just needs to display both ui widgets simultaneously and handle the different parsing in and output logic.

I'm following the launch of Kendo UI closely.
IMHO what Kendo has to do right now is post a demo of a medium sized web app (>20 screens) showing us how to integrate al the pages eg via the menu widget.
The To-Do-List sample app is learning us nothing.
2 years ago, I've bought, studied, tested, flamed, ... ExtJs and never got to the point of building a decent web app.
This was THE MAJOR complaint of the ExtJs newsgroups. They have a lot of small widget demos but how do we integrate them into a medium sized app eg a webshop.
So, Kendo UI, please don't make the same mistake. 
Show us a medium sized web app with all the widgets and - most important - how they interact with each other.

regards

Patrick De Laet
patrick@fijisoft.be

Create RichTextEditor Widget which is integral part of all content management systems. Also, it would by nice to create checkbox widget.

Right now, editing in the grid seems to be on a per-cell basis.  I would prefer a model where each row has an edit button, and when clicked, it would put the row into edit mode.  A save / cancel button would then be available to validate and save or cancel the edit.

My Team created a Dashboard Silverlight App built using Silverlight RadControls. So we have lots of chart types with cool features as drill down, gauges.
Now, we are looking forward to move to HTML5 soon... in order to do that we need all this rich widgets ASAP in Kendo UI.

Thanks!

Release a guide similar to the jQuery UI one which shows the best practices to develop our own "kendo ui conform" widgets and allow and document the code reuse - like globalization - from our own widgets.

Allows to bind, fire and assert key combination strings against all these Kendo UI widgets and events. Such as using keyboard shortcut to handle grid row selection or using keyboard shortcut to go to next page ... etc.

Would be nice to be able to define custom components and inject them into pre-built components. In general, it will be great be able to create simple UI components and aggregate them in a complex component.

For example, create a custom details window and use it in a grid or in the scheduler or on a page. 

It would be nice in the grid or treeview modules to have a "DblClick" event handler. 

A direct and simple way to build a tree from an Object : 
Work fine like that but a shorter way would be better
a.k.a ~ $("#mytree").kendoTreeView({'ObjectSource':myObject)
try this html to have a better idea of what i suggest.
Thanks


<body>
<ul id="mytree"/>
<script>

         $(document).ready(function() {

         		 var myObject = {  "who"    : [ "french", "man", "old geek", { "age": "49", "status" : "with a wonderful wife" } ],
                                       "living" : { "Europe" : { "France" : { "cities" : ["Paris","Bretagne"]}}},
                                       "loving" : [{ "langages": ["KendoUI", "Node.js"]}, { "other" : "chocolate" }]
                                    };


                 var ObjToHtmlUlLi  = function (obj) {
                                            var result = "";
                                            if (obj instanceof Array) 
                                                for (i in obj)
                                                    result += "<li>" + ObjToHtmlUlLi(obj[i]) + "</li>";
                                            else  if (obj instanceof Object)
                                                        for(i in obj)
                                                              result += "<li>" + i + "<ul>"+ObjToHtmlUlLi(obj[i])+"</ul></li>";
                                            else
                                                result += "<li>"+ obj + "</li>";
                                            return result;
                                           };

                $("#mytree").html(ObjToHtmlUlLi(myObject));
             	$("#mytree").kendoTreeView();
                //=> somethins like   $("#mytree").kendoTreeView({'jsonSource':myJsonObject) would be great
        });
</script>
</body>

In widget "menu" option "direction" would be handy.
So you can easily insert the menu under a component and to develop to the top.
Would be nice to be able to place the menu on the right or left.