Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5) I got to use my niece's 13" MBP last night and to my surprise, it felt smaller compared to my 13" MBA. I know this is definitely just my imagination. In fact, I owned a 2009 uniboby MBP but it never felt substantially bigger. Thanks (maybe) to the MBA's silver bezel, the MBA 13" seems like a bigger brother. Hmmm...maybe this is why people think the 13" is not as portable as the 11". It could be just their imagination after all.