There have been prototypes of similair devices but this appears to be the first that is actually commercially available. Use VoIP when you're in WLAN coverage and GSM when you're outside the coverage area. That's what I call seriously cool!
More details here http://www.parawireless.com/hipi-2200.htm
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Comment by Muheeb Alzaki, on 14-Jan-2007 18:55
is there a detailed document with screen shots of images of how actaually this mobile hipi 2200 work?