So, some people at our office got issued 15" MBPs the last month or so, and I was one of the lucky ones to qualify. As background, I have been using a Rev A MBA for the last 20 months. I can tell you one thing. I hate lugging that MBP so much I actually leave it at the office most of the time. I remember when the MBA first came out people were saying 2.5 pounds extra would not make much difference so just go with the equally priced MBP, but no...it does make a big difference not just mobility wise, but in over all convenience and ease of use. Now that i have all those ports I don't know what to do with them because I have already trimmed my dependence wired peripherals. I don't know what to do with the built in Optical Drive, too. Frankly, I don't know what to do with the thing, except leave it on my desk drawer at night. Funny that getting my hands on a more powerful machine made me miss my "underpowered" Air so much more!