The Blackberry Pearl Flip Phone (the 8220) is officially on the street today for a buck fifty.  That $150 gets you Blackberry’s first flip phone via T-Mobile, but not without a two-year contract.  As we mentioned before, we’re not totally sold on the Blackberry flip concept, and we’re not certain that consumers will dig it either.  What’s a Blackberry without a QWERTY keypad?  Sure, the original Pearl was popular, but a BB without a full keypad is like an iPhone without a touch screen.  Pretty pointless… [t-mobile]