i need advise...i need to get a new laptop for work. at my office i would plug it into a key board and external monitor, but I also travel alot and need to use it on planes, hotel rooms etc. i do want something easy to carry and durable. Right now I use a Sony Viao (9")...but am switching to mac...QUESTION...do I get the new updated MBP 13 (which I played with at the store and feels great) or the Air? Does anyone know when the new AIr is coming out? Should I wait? ANy ideas on how it will be different?