Hey, I'm unsure about which macbook I should get for iPhone development. I either want the 15inch 2.3Ghz, 500GB 7200rpm mbp or the 13inch 1.8GHz, 256GB ssd mba. Ill be using this macbook as my main computer for iPhone development (programming and graphic work) and also as a music production workstation. So there will be lots of multitasking. First, I was leaning towards the mbp but a refresh might be coming in the next 2-4 months and the mba just got its refresh. Also, the mba is about 800$ cheaper but I will be using this macbook to make money so money is not too much of an issue. I also like to work outside so I need the anti-glare the mbp provides unless the mba's screen is fine outside. Do you think the mba is powerful enough for me?