To be honest, I would just get a cheap x86 laptop with a USB port and
use a USB<->RS232 dongle.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>