i've been thinking about this myself, i have a 15" rmbp 2.7ghz/16gb ram/512gb ssd that i love for home and work, but have been thinking that a macbook air for vacations and just running around town would be nice. i have a 4th generation ipad too, but primarily using it for reading .cbr files... i'm just not that into it for other use. unsure if i should just man up and lug my macbook pro with me everywhere this summer or get something more portable. just have some money to burn and not much i want lol.