The MapPolyline should support the driving direction feature. It should be able to displaying arrows.

The VisualizationLayer does not always show items when the RadMap uses a custom map provider which uses a custom UTM map projection.

Expose an event to fire if the files that should be uploaded are in use by another process.

Implement a feature that allows the RadUpload control to resume its upload session when interrupted by a connection failure.

Support for WebBrowserBrush.

You could repair the invalid file using the project from the attachment.

Implement template or properties providing the audio player look when playing audio files. For example: hide the media rectangle when it is not required; provide a way for customizing the videocontrols panel.

Add support for different upload services - WCF, etc. Ability to use the RadUpload with a Linux server side.

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The reason is security and asynchronous implementation + remove the processing to a service instead of the silverlight app.

security: Using the filestream attribute in SQL Server 2008 the connection to the database is to be made by windows authentication. Therefor we created a functional windows account that runs the service and is responsible for the connection to the database server.
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This only happens in IE8.  IE9, Chrome, FF3 and FF4 all work okay.  As soon as the componenet is set to visible the scrollbar appears because something has been added to the body html.  The suggested workaround to have the body style overflow set to hidden

Provide a gradient color picker similar to http://www.markbetz.net/sl/gradient/

Allow the QAT context menu to be extended

"It would be really useful to have a RadComboBox with a RadTreeView.

The combination of RadDropDownButton with a RadTreeView seems to be an insufficient workaround:
- start-up item setup
- sync current item
- IsOpen hack in MVVM
- no validation support - which is a serious drawback
- no edit/search support"

Add support for direct content of ribbon buttons (like using XAML vector graphics instead of images).

Provide built-in compression.

I assume that even though this is listed under RadControls for Silverlight it will also apply to RadControls for WPF.

Allow disabling of the FullScreen functionality.

Does not resize correctly in IE when surrounded by GridSplitters

The map navigation buttons will support the functionality like the auto-repeat when a key is pressed.

Use Matrix3DProjection for 3D transformation