i also have a CM11 which i'm playing with; i didn't like the heyu code
and so am writing my own driver in my copious lack of spare time.

The device itself seems to `lock up' periodically (i.e., when i don't
ahve anything talking to it to drain its input buffer); when I haven't
touched the device in a month or two, I usually find it necessary to
pull the batteries out, wait a minute, and plug them back again,
repating until I see the one-character-per-second signal on an RS232
breakout box..

					- Bill