There is a error in the grid demo http://demos.kendoui.com/web/grid/index.html. This is in the Virtualization of local data section. The Error says "stop running this script? A script on this page is causing IE to run slowly. If it continues to run, your computer might become unresponsive."

Support for multiple pointers in guages

I am put off using KendoUI because of the limiting nature of theming and styling the controls especially the sprites

They don't scale well, can't be coloured and are hard to replace without lots of css editing. 

I'm using kendo ui for mvc and a control that could be very useful is a captcha for form submission.For sure you can integrate it by using Google reCaptcha in a easy way not only for kendo ui for web but for mvc also.A good idea could be to integrate you own captcha control (for intranet environment, or private internet network ) because reCaptcha only work with a stable internet connection (Google Web Service).

With native IOS, Android programs we can put the field prompt (for example User or Password) as a string in the input field that goes away when data is entered and when the field is cleared shows up again.  Is this possible to add?

It's obvious enough. I made normal size buttons with plus/minus functionality but there is no "minus" icon now.

 I hate to create or have hardcoded ui in my view. 
Similiar with what Silverlight does with the dataform ,if i bind my form to a model for each property in my model  Kendo could create the label and the right input field on the ui.

We just want to update/edit the Mysql data. Is there any possibilities to do this type of job in Kendo Editor. Please provide me suitable help on it. 

In documentation and examples, its mentioned that Kendo UI Menu can be accessed on client using $("#menu").data("kendoMenu") , which doesn't work

it's actually $("#menu").kendoMenu().data("kendoMenu");

Tooltips (especially in charts) get clipped. Need to ensure tooltip is posted in display area.

Try tabbing through a form with a bunch of inputs and tabbing onto a button at the end. Although it works you can't tell because the button doesn't indicate the focus!

 if I want make my custom header (image, few rows, others) I can't do it - I need to write "title:false" and to come up the implementation of title in content.

I propose to add a few lines in the code to be able to customize header:

1. To templates:
	templates = {
		...
		existtitlebar: template(
			"<div class='k-window-actions k-header'>" +
				"# for (var i = 0; i < actions.length; i++) { #" +
					"#= action({ name: actions[i] }) #" +
				"# } #" +
			"</div>"
		),
		...
	};
2. To function "createWindow(element, options)":
	instead of "if (options.title !== false) wrapper.append(templates.titlebar(extend(templates, options)));"
	next:
		if (options.title !== false) {
			var header = contentHtml.find(KWINDOWTITLEBAR);
			if (header.length == 0) wrapper.append(templates.titlebar(extend(templates, options)));
			else wrapper.append(header.append(templates.existtitlebar(extend(templates, options))).detach());
		}

And if I write:
<div id="window">
	<header class="k-window-titlebar"><img src="some_image.png"/> Test header</header>
	Content of the Window
</div>
...
$(document).ready(function() {
	$("#window").kendoWindow();
});

I get next (ex.):
<div class="k-widget k-panel" style="padding-top: 26px; ">
	<header class="k-window-titlebar k-header" style="margin-top: -26px; ">
		<img src="some_image.png"/> Test header
		<div class="k-window-actions k-header"></div>
	</header>
	<div id="window" data-role="window" class="k-window-content k-content">
		Content of the Window
	</div>
</div>


P.S. Possible the content of "header" should be placed in "span class='k-window-title'". In this case the new template is not needed. Only override "options.title" in "createWindow".

Please do for PHP devs what you've done for .Net devs in the Q2 release! 

Provide default mode for Kendo Mobile.

When working in kendo mobile web applications, give the user the ability to specify a default or fallback render mode if iOS, blackberry, or droid are not found.

Implement it much in the same way you implement the platform application property but instead of saying use this platform for all render modes, this property would equate to saying use this mode IF none of the other supported modes within Kendo Mobile are not found.

This also would be good for future development as you add render modes we could response with our "default" style.

As per this forum post: http://www.kendoui.com//forums/mvc/grid/bug-grouping-name-does-not-honor-mvc-attributes.aspx, the MVC Helpers for the Grid honor the Display attribute in certain situations, but not others.Namely, when a column with a [Display] attribute is turned into a Group, the DisplayAttribute.Name is no longer honored.

But even that is technically not the correct behavior. The correct behavior is for the group to use DisplayAttribute.GroupName, then DisplayAttribute.Name if the GroupName is not specified.

For KendoUI Mobile, it would be great to have a controle that display an alphabetical index (a-z), much like the Windows Phone 7 jump list. 

This could be bound to the first letter filter property of a list control (grid or else). 

Rather than working on you own MVVM implementation you should provide support for full KnockoutJS as other vendors like Infragistics & ComponentOne have done. Very few of us would want to get tied with your MVVM implementation which would make moving to other controls in future difficult.

With lack of documentation working with your controls is a nightmare.

It would be nice to have a control such as iOS datetime picker
http://www.dosomethinghere.com/wp-content/uploads/2010/11/datetimepicker.png

- and it would be even better if we coulld have a combobox similar to the datetime picker where we have only one scroll to select a perticular text!!

Routing is important for building single page apps which is missing from framework right now. 

Routing component of Backbone is very nice. Simple and intuitive. A library similar to this that is integrated into the core framework would be great.