While I do find most of the GPS based ideas intriguing I do have one comment.
Power usage! ============ I wonder if you have realised that the GPS consumes large quantities of current. (45 mW according to http://wiki.openmoko.org/wiki/Neo1973_Power_Management#Approximate_power_draw_of_various_subsystems) The 1200mAh battery will be drained in 1200mAh/(45mW/3.7V) = 98h ~= 4 days And this is for the GPS receiver alone and no power conversion losses, but GPS reception also requires CPU power.. If the CPU @ slow mode is 50mW and the GSM at idle is 30mW, then I would consider 45mW quite an addition power drain. It of course gets even worse if the GSM can wake the CPU from SYS_POWER_SLEEP http://wiki.openmoko.org/wiki/Neo1973_Power_Management#SYS_POWER_SLEEP Hence only the GSM has to be active? (plus some minor power drain for the CPU) That said I might actually still opt to have my standby time cut to 33-50% _______________________________________________ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community