9to5Mac is reporting that a unibody, 17-inch MacBook Pro will be announced at Macworld, following in the footsteps of the previously released unibody 13 and 15-inchers. The rumor, backed up by some "whisperers" at Macrumors, isn't really an earth-shattering surprise -- though the accompanying revelation that this model is expected to have a slim, extended-life, non-removable battery is rather eye-opening -- and somewhat disappointing, considering the lameness of non-removable batteries. We'll know for sure on Tuesday at the keynote.Update: Apple Insider is also independently confirming
