An existing control looks like http://demos.devexpress.com/ASPxImageAndDataNavigationDemos/NewsControl/DataBinding.aspx
Where this control would allow you to express the UI of the aggregated feed data, where as the  feeds from RSS or  LinkedIn, YouTube etc can be sorted, grouped, stared or shared. 
So ideally feeds can be added at run time. Personal settings could be saved using existing tooling.
The ideal solution would allow the end user to customize their feeds.
Ideally it would degrade well onto a mobile  interface so you can flick thru all the feeds, flick to the left or right to dismiss or save. This is a bit more KendoUI

Please add an ability to move text in different styles, something like HTML MARQUEE.


For example:

http://www.htmlcodetutorial.com/_MARQUEE_BEHAVIOR.html

http://www.plus2net.com/html_tutorial/html_marquee_behvr.php

It would be helpful , if you provide image library like Visual Studio provides.
The image library can have all the standard and specific icons of telerik.

The DragAndDrop functionality of the RadAsyncUpload under Edge, works properly if DropZones property of the control is set.

When you enable the control's keyboard navigation, using the arrow keys for navigation does not work when you use NVDA screen reader.

Recently when I was testing my ASP.Net application on different browsers, I found that in some of the browsers the controls did not work as expected.   These browsers were not in the list of compatible browsers mentioned at following URL:  http://www.telerik.com/aspnet-ajax/tech-sheets/browser-support

I then tried to come up with a method in JavaScript that would check if the current browser matched any one of the compatible browser name and browser version mentioned in above URL.  Then I could simply call this JavaScript method in the  page load event of master page and alert the user that the browser he or she is using is not compatible with the website.

It would be nice if such a method was there as part of RadControls library for ASP.Net AJAX. Such a method could be defined on client-side as well on the server-side.  It would  make life easier for a developer using RadControls, since users of the web site could be easily warned if they were using a browser that RadControls did not support.  Right now end users would just see the application behaving strangely when RadControls are rendered on an unsupported browser. 

The styles related to multipage are too broad and affect all child iframes, not just the one from multipage.

The second iframe must not inherit any styles

<telerik:RadMultiPage runat="server" SelectedIndex="1">
    <telerik:RadPageView runat="server" ContentUrl="http://www.telerik.com" >
    </telerik:RadPageView>
    <telerik:RadPageView runat="server">
        <div>
            <iframe src="http://www.telerik.com" ></iframe>
        </div>
    </telerik:RadPageView>
</telerik:RadMultiPage>

Using the web.config to enable lightweight or auto rendering for all controls, some of RadEditor dialogs (most of them are the Lite Dialogs) have visual issues and are impossible to be used. 

When the form element is offset, RadAutoCompleteBox popup is not properly positioned unlike the Combo / Dropdown counterparts.

Since we append all popups in the FORM element, the issue is only exhibited if FORM is not top level element, but is instead nested. The most obvious case is when you have Bootstrap structured page: .container > .row > .column.offset-3 > *form* > radautocompletebox.

For the time being you can use the following workaround:
CSS:
	<style>
		html span.RadButton_MetroTouch.rbToggleButton .rbText,
		html span.RadButton_BlackMetroTouch.rbToggleButton .rbText {
			padding: 0 25px;
		}
	</style>
ASPX:
			<telerik:RadButton ID="telerik:RadButton 1" runat="server" ToggleType="CheckBox" ButtonType="ToggleButton" Skin="MetroTouch"
				Text="Click">
			</telerik:RadButton>