Evidently Blackberries are so crappy, they aren't even worth stealing. Can't say I blame the thief. Low resale value, high security, very little demand for Blackberrys. They really aren't worth stealing.
In the late 90's any teenager carrying a cell phone were asking to get robbed (in rural areas in London anyway). But now cell phones are owned by everyone and it's eased off the pressure. But I do cringe to the fact that the iPhone 4s costs the same amount as my PC!