Eric got me all curious about switching to a Blackberry instead of to the Treo 650 (or 700 or whatever comes next). I called Sprint today to find out about my options and was told that my “unlimited vision” data doesn’t cover the Blackberry. You have to add an additional $45/month plan just for the Blackberry data. That basically adds $540/year to the cost of the device – no thanks. 🙁