I'm already trying to get them to add a ATMEL & FTDI driver to the next firmware version. (for the on-device USB-A socket which hasn't been utilized yet.) there'd be a immediate connection link to run an arduino in concert with the ARM9 processor. I'm already trying to hack the code between the parallax Basic Stamp, and the Adruino uses of the Parallax PING))), to add distance sensing to the TRAKR.
Oh-yes, there's all kinds of hackability to the device.. 