Under features, portable wi-fi hotspot is touted with no additional carrier fees. This currently works on T-Mobile with my Nexus one, but I assumed I was "getti

Under features, portable wi-fi hotspot is touted with no additional carrier fees. This currently works on T-Mobile with my Nexus one, but I assumed I was "getting away" with something. T-Mobile charges $15 for tethering/hotspot on other devices.