Why Shouldn't I Switch to the iphone?

I finally used one for an extended period the other day. I was worried about AT&T's slow, EDGE service but the browser's interface is so superior that it almost makes up for the slow speed. I hear some rumors about its email pushing being not so hot, but I run a pop3 server at work.

I love my BB and have had it for 3 years, but the iphone does appear to be light years ahead of my 8703 and Alltel (my provider) will probably not have a similar BB product for 2-3 years.

Thanks for your input and help in advance...