The other night I remembered that the 200LX I I used in the 90s had a full serial port, and that I used to enjoy SkyGlobe on it. I immediately wondered if DOS Guide could be run on it, in order to expand the hand controller features (scrolling thru lists and menus on a numberpad versus a full keyboard). I certainly don't expect speedy performance, but the size and long battery life kept me using that 200LX for a long time. It's small and compact, and has controlled several 'boxes' at 9600 baud in the past.

MS-DOS 5.0
640 KB is RAM
CGA graphics

More details here:
http://en.wikipedia.org/wiki/HP_200LX

The PCMCIA slot acts as the disk drive, but there are storage limits from the hardware and MS-DOS 5, so perhaps a custom catalog would be required....but those issues can be sorted out IF the current version of DOS Guide can run on such ancient hardware.

TIA