I am days away from dumping my Blackberry service. I love my 7100i except for the case. I wear a bunch of stuff on my belt at work and need a case that can be used horizontally.
If not, I have to go back to a regular Nextel phone but will truly miss some of the Blackberry functions like email.
I am still under contract with Nextel and could cancel, but I don't get Cingular or Tmobile service at work.