Please consider adding series transitions to charts. Trirand JQ Charts and the new Wijmo charts both have the ability to toggle the series via js. Also, drill down capabilities either via dialogues or linked grids on the same page would be a very handy feature.

Now that the Kindle Fire devices are flying off the virtual shelves, it would be cool to add Silk support for Kindle Fire devices. Not sure how you do that or if it's even possible... just putting it out there.

I do not understand why Telerik is releasing a client-side only version of their controls.  Why are not the ASP.Net Ajax components generate html5 controls like the Kendo UI one? 

I would like the controls that I bought (ASP.Net Ajax) to adapt to the world, this is the reason why we first bought them (to avoid taking care of writing client-side interface over and over again and technology progress).

Please integrate KendoUI to Telerik server controls.

Thanks.

Since now Google started doing it on Gmail, I believe that we'll need even more these features.

Once a theme is created and the css/less code is grabbed, the only way to easily and visually modify the theme later is to input all the old values back into the themebuilder.  It would be nice if there was a way to easily get the values back into the themebuilder from a created theme.  To take a page from jQuery UI, they stick a commented out URL into the theme's CSS that will automatically load the themeroller with all values filled out.  This is extremely handy for modifying themes.

At typical usecase for web applications is to let the user upload and image (portrait, avatar, picutre of real estate etc.) and then resize and crop it to a specific contrain.

An easy widget for handling the cropping and resizing might come handy for many.

There are solution for cropping and also resizing in jquery plugins already, however a successful and pretty combo of the two seems to lack a bit.

Inspiration:
http://deepliquid.com/content/Jcrop.html

I'd love to be able to do fractions in the NumericTextBox

...fractions are numbers too! ;)

Or more flexible:

Allow developers to handle user's click on a DataViz legend item.

And provide the possibility to set/reset the visibility of a DataViz serie not only his opacity.

For the app we're currently building, a chromeless, modal window would have saved us lots of time and coding and there are other applications where this could be very useful (especially in the ad serving industry for instance allowing affiliate marketers to place various javascript widgets on their sites that load remote content, etc). 

It looks like a Funnel chart type is one of the typically missing chart types from many html5 chart libs, currently. 

It's pretty useful and including it in dataWiz would give you a competitive edge towards other chart libs ;-)

Make better kendo framework documentation. Demos are fine but it does not have many of the necessary information.

Update dependencies in documentation + add dependencies info in the beginning of each source code file.

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.