iFixit's mid 2010 MacBook Pro teardown reveals a few interesting tidbits:
- Apple has stopped using five-point Torx screws found on other MBP 15" Unibodies in favor of Tri-Wing screws
- The battery is now rated at 77.5 Wh. That's just a tad bit more than the 73 Wh battery found in last year's 15" model, but not enough to explain the 1-2 hour battery life improvement Apple is claiming for this machine.
- Sound improvement: Apple changed the design of the speaker assembly slightly, moving from a single plastic enclosure to separate plastic enclosures for the speaker & subwoofer that are connected by the speaker leads.
- The Wi-Fi/Bluetooth board location has changed to more closely resemble the MacBooks'. Because of the metal enclosure of the MBP, Apple added an antenna on the opening of the Superdrive!
- New Intel BD82HM55 S LGZS Platform Controller Hub. - assumed chip is switch between the Intel and NVIDIA graphics.