I feel ya! I'm something of a general Mac fanboi myself, but the iPhone is NOT a serious communications device. Slick toy, good iPod, but not a communicator like the Blackberry.
My reasons for not liking the iPhone:
1. Virtual keyboard - FAIL! I can't deal with it. Maybe if I sent out one or two short messages a day it wouldn't bother me so much. My Blackberry Bold has great key placement/layout, and tactile feedback.
2. Copy/Paste - I use this daily. It's just part of how I work. How does ANY smartphone today not have this? My Palm Treo 650 did this! C'mon Apple, get with the program!
3. MMS. My kids have basic flip phones and don't do email on them. So if I snap a quick pic and try to send it to them, like when I'm away on business, they can't get it unless it's an MMS.
Let us not forget
THIS PAGE! Although the author is clearly a Nokia fanboi, the sentiment translates to other platforms as well.