We created a sample application which shows how TabControl can be made of a ToolBar and TPanelVista.
A TabControl can be used as an alternative to a scrollable panel. The contents of a scrollable panel can be distributed among the pages of a TabControl. Also the icons of the ToolBar can be finger-scrolled therefore you can have many more “tabs” using this approach compared to traditional System.Windows.Forms.TabControl.
The sample application can be found here.