For those of us who cannot get GSM reception (and/or want unlimited UMA / WiFi calling via T-Mobile's HotSpot @ Home), we need a way to get HotSpot @ Home calling to work seamlessly on the iPhone. It should be the default dialing / reception mode whenever an open 802.11 wireless network is found. Any senior members or geniuses out there who know how to get the 802.11g radio, the chipset, and the software to all work together and let us do this?