i saw this today and it has lots of potential
http://www.ttora.com/forum/showthread.php?t=170835
the smart phones can already be intagrated with SPOT messangers. will they continue to evolve into offline/offroad navagation? it looks like there is a certiain amount of work invloved to make this work right. the way i see android progression and the ease for a programmer to make a paycheck at the apps store...id guess it wont be long.