Originally Posted By: tonyc
The iPhone's meteoric rise is certainly impressive, but it's a very fickle market, with a lot of incentives for people to jump from carrier to carrier (and often platform to platform) when contract expiration rolls around. iPod/iTunes will provide a bit of vendor lock-in, but I can't imagine EBay-like market dominance is possible in the next five years.

Oddly enough, it is that iTunes lock in that is preventing the iPhone from being an option with my company because some IP lawyer thinks that might be a way for information to leak out from the company. ATT is now the exclusive provider of anything telephony related (to include web-based stuff) but the iPhone isn't being offered as a replacement for the Blackberry.