When animating from one state to another the content Fills the entire area( before the items was not stretched and it took the space it required). Available in LIB version: 2015.3.1026
If a RadTileViewItem hosts several controls (e.g. Buttons, RadioButtons) users should be able to change the focused element using arrow keys.
TileViewItems' opacity is lost after drag and drop - if you set an opacity different than 1.0 in XAML it will be overridden after a DnD operation with this item.
If you have a nested TileView and its MaximizeMode is One you'll still be able to press the Minimize button of the Maximized tile and this will lead to incorrect layout.
Implement a touch swipe scrolling for RadTileView
Add TileViewItem.HeaderBackground property. DECLINED: There is SDK sample available demonstrating how you can change the background color of the header of each item. https://github.com/telerik/xaml-sdk/tree/master/TileView/ChangeHeadersBackground
Provide support for changing the ItemContainerStyleSelector runtime.
Implement a mouse wheel support for the Horizontal ScrollBars of the control
Add animations for items collection change (add/remove)
Add support for IsSynchronizedWithCurrentItem
Allow setting minimum size of the rows and columns: I don't know at design time how many items there will be in the tileview, so if I set fixed height and width for items I can have the control using only 1/10 of the available space, but if I don't set them I can have many too-small items which content cannot be properly displayed. I need a minsize for the items so if I have few items they have a variable size and if they are a lot they use the scrollbars.
If minimized items are placed top, the horizontal scroll bar should be top as well and so on.
Add GridSplitters between the columns and rows of the TileView so that rows and columns can be resized. GridSplitters should be available when the tiles are restored or Minimized/Maximized. In the latter case, only a vertical one should be available to resize the minimized tiles' width in respect to the maximized one.
TileView: Allow users to see the TileViewItem OldState property