Your ipaq is bluetooth enabled, so a bluetooth gps is a good choice. A bt gps can indeed connect to more than one device at the same time. As a gps junky, I own many gps units but I use my GlobalSat BT308 about 99.9% of the time. The only drawback with a BT unit, in my opinion, is the extra step required to make a connection. The ipaq or laptop or whatever must first make a bluetooth device connection, then you can connect to the gps unit. They say "pairing" the device eliminates this extra step, but I've found pairing to be unreliable. A good source for GPS reviews and info is gpspassion.com. The site is a little slow, but there is some good information in there. Hope this helps.