You probably already have this info but if not perhaps it would help a little.
This is a nice summary of NMEA protocol:
http://www.kh-gps.de/nmea.faq
And the Trimble Lassen documentation has a nice description of TSIP and TAIP:
http://trl.trimble.com/dscgi/ds.py/Get/File-9998/lassensk2man.pdf
On the diagnostics, if not on a separate screen then even some corner pixels coded or character variations could be made to work for # satellites etc.
I originally started this thread a while back toward this end:
http://empeg.comms.net/php/showflat.php?Cat=&Board=hackers_prog&Number=77301&page=1&view=collapsed&sb=5&o=0&fpart=1
Still struggling with Python. Does it actually find the route.html file or what? Perhaps my Python installation is kaput. I just get:
NameError: parse....
My autoHijack Python script seems to run ok, however.
Thanks,
Lynn