AT&T announced that they are updating their 3G networks in order to increase their maximum data flow from 3,6 to 7,2 Mbits/s. This advertisement is not innocent, since the rumours state that the new iPhone expected in June will reach these data flows.
In France, the operators already use the HSUPA standard at 7,2 Mbits/s. So, hopefully one should be able to profit from the next generation of Apple iPhones.