Ok no CM15A's

[OddballHero]

For me, it sounds like $25.00 Pogoplug (there is always a sale) + XTB-232 and I got the perfect controller.  Just use a pl2303 based cable, build the usbserial.ko and pl2303.ko modules, no need to change the kernel for Optware.  Then "mknod /dev/ttyUSB0 c 188 0" or install mdev.  For Debian and ALARM already done.  Pretty good "Open" solution.

http://www.nslu2-linux.org/wiki/Optware/PlugComputers
http://www.nslu2-linux.org/wiki/Main/PlugComputers
http://jvde.us/

[Noam]

For me, it sounds like $25.00 Pogoplug (there is always a sale) + XTB-232 and I got the perfect controller.  Just use a pl2303 based cable, build the usbserial.ko and pl2303.ko modules, no need to change the kernel for Optware.  Then "mknod /dev/ttyUSB0 c 188 0" or install mdev.  For Debian and ALARM already done.  Pretty good "Open" solution.

http://www.nslu2-linux.org/wiki/Optware/PlugComputers
http://www.nslu2-linux.org/wiki/Main/PlugComputers
http://jvde.us/

Now, put them both into the SAME box, and you've got a viable product! (without RF, of course)