What I'm doing with mine:

1). Set up for mobile operation. Working on how to do this, I'm interested in following the path of the TuxPad...

2). I bought a NEMA GPS I'd like to hook up to it.

3). I would like to find some sort of wireless parallel port connection established with my home box but haven't worked it out.

Where I'm at:

Stuck (temporarily) on getting the GCC ARM cross-compiler working under Red Hat 7.2.