An Applesana forum poster(via Applesfera) is reporting that the new Mac OS 10.6.2 OS build 10C531 contains the following references to new MacBook Pros:
Current MacBook Pros are Version 5_5.
Separately, we've heard that Apple Store Geniuses are being trained on new Quad-Core (probably Core i5 and i7) processor MacBook Pros and they expect to take delivery of the new machines at the same time that the new high-end Core i5 and Cor