Great to see some activity here... I have always thought the HPC to be quite a fun platform to play with. For those that may be interested I have been playing with some simple EVB software to process NMEA data from a GPS module and display this along with a compass type display and ongoing calculation of distance travelled. Still a little way to go when time allows. Far from a moving map with it was fun to work out the trigonometry was fun to work out.... it's been a while since school!
The source and install sets for various HPC Models that I have
(HP 620, 680, 720 and 728 and Hitachi HPW-600ET
) are available to anyone who wants to play at
http://www.electricsoftware.co.nz/constellation.