Add the posibilty for the RadOutlookBar control to have Width less than the specified MinWidth, when Minimized.

OutlookBar: Visual state of selected items in not correct

Provide visibility enumeration for the Overflow button "WhenNeeded", "Visible", "Hidden/Collapsed"

 Clicking on MinimizedOutlookBarItem when there is Visibility set to Collapsed on one of the items, the RadOutlookBar selects different item.

Currently , there is no possible way to drag an object fromt he Outlookbar's Popup and drop it outside the OutlookBar

The foreground of the content in the pop-up when the OutlookBar is minimized in Windows8 (Metro) and Windows8Touch themes is wrong - it is white like the background.

Tooltip is shown on horizontal splitter when ActiveItemsMaxCount = 0 but it shouldn't show since the splitter cannot be moved

The ActiveItemsCount is not working

There should be a way to set horizontal orientation for the items of the OutlookBar.

When the ItemsSource of the control is populated from a background thread, users are not allowed to manually set the position of the horizontal splitter.

The DisplayMemberPath property is not respected

Workaround:
Use an implicit style targeting RadOutlookBarItem instead of the DisplayMemberPath property. You can define the style in the xaml page (the view) where the RadOutlookBar control is defined.

<Window.Resources>
    <Style TargetType="telerik:RadOutlookBarItem">
        <Setter Property="Header" Value="{Binding ItemHeader}" />
    </Style>
</Window.Resources>

Create integration example with TransitionControl.

Include the Show more/fewer and add/remove buttons functionality in the bottom menu.
Properties that get the ActiveItems' Count and MiniizedItems' Count also needed.

Easily customize the bottom menu with user defined RadMenu items.

When the OutlookBar is minimized and you click the right splitter without moving it. Then the outlookbar is still minimized does not expand to the previous expanded position

Implement Tab Navigation

Add minimize/restore animations

Add a property which changes the minimize button orientation.

When the selected item is Collapsed, the RadOutlookBar still displays its content and Title