Con - You must use AT&T. If you don't then,
Good news is Verizon is coming out with a similar phone called the Voyager. The Voyager, made by LG Electronics, trumps the iPhone by offering faster wireless Web access. Voyager has 2-megapixel cameras, and high-speed wireless connections for fast music and video downloads, and a slot for 8 gigabytes of extra memory. The iPhone has 8 gigabytes of built-in storage. First up, the Voyager features a large external touch-screen display, and, inside, Voyger users will find a full QWERTY keypad for their text-messaging and email needs. The phone ties into Verizon's EVDO high speed data network—which offers higher bandwidth than the EDGE network afforded the iPhone by AT&T—and offers a full HTML browser and support for unprotected MP3, WMA, and AAC audio: users will be able to cart around their personal media library on microSD cards, which currently support up to 8 GB of storage. The Voyager also sports a 2 megapixel camera, and should be available by the end of November.
Verizon is hopeful the combination of high-speed data access, V Cast media access, and a dedicated QWERTY keypad may appeal to users considering the iPhone, but who are put off by reports of slow data access via EDGE (although the iPhone also offers Wi-Fi connectivity) and touchscreen-based keypad.
I am waiting for the Voyager!