Price:

PocketBlinds is the first free form skinning extension for Windows CE 3.x or later (PocketPC).  PocketBlinds allows you to skin the title bar completely and add/position as many buttons as you can fit.   Moreover, it is compatible with the WindowBlinds plug-in format allowing users to easily make their own title bar "gadgets" (MP3 players, stock tickers, memory meters, etc.).  It's also free.

Two things to remember:

(1) PocketBlinds integrates directly into the OS by extending the Windows CE GWE(Graphics, Windowing, and Events) subsystem, so it is fast and small.

(2) PocketBlinds skins are truly free form. It also has an open plug-in architecture, which means that users can make their own plug-ins to extend the navigation bar.. It also means users have a great deal more control over where a button is placed.

* [January 2005] Windows Mobile 2003 devices are not currently supported by PocketBlinds. We've recently begun working with another developer on  updating PocketBlinds for newer devices, which he should then be offering in the coming months.

He's also the gentleman who's taken over the WisBar development,
so it'll sort of be one-stop-shopping for PocketPC skinning.

More news will be on http://www.lakeridgesoftware.com/ when
PocketPC 2003 support is available.