So I'm really considering upgrading my Macbook Pro to a Macbook Air. I would be getting the 2012 13" i7 w/ 8GB and 512GB SSD. I'd be upgrading from my 15" Macbook Pro with 2.53GHZ i5, 8GB, and a 120GB SSD + dedicated graphics. According to Geekbench, the top of the line 2012 MBA would be twice as fast as my current Mac. Does this seem right to you? The specs don't seem like they'd be that much faster. Also have any of you switched from a 15" MBP to a MBA? Thoughts?