Considering the recent death of my DSL modem, I'm looking at SprintPCS wireless data services. I know I can use either the Treo 700p or Samsung A900 by USB cable to connect to the internet. They have 3 different cards. Does anyone have experience with them and know which, if any, are PowerBook compatible? Starcom PC-5740 Novatel Wireless Merlin S620 Sierra Wireless AirCard 580 Sprint only lists that they're compatible with Windows XP.