3G vs. 2.5G: What the iPhone will be missing
Though there are rumors that a 3G-capable iPhone is in the works, all official indications are that the initial iteration of the device will make use of "2.5G" (affectionately known as "EDGE" in ATT&T/Cingular's world). Also, it should be noted that (assuming Apple has not secretly placed HSDPA-capable chips in the iPhone) the capability to access Cingular's 3G HSDPA infrastructure is not one that can be added to the iPhone via a software update; access -- at least for already released devices -- requires capable built-in hardware, such as this … Read more