ok guys, Need one more piece of advice from experienced users here. I am an indie iphone/android app developer. Currently with a 2010 mac mini. I wanted to up my productivity by getting a portable device and using it when im on the bus or somewhere else where i could spare time. Now i know the benefits of both these devices on paper but how does the macbook air fair with photoshop? Honest opinions please. Does it stutter or lag or show any kind of resistance? Its is imperative that you guys understand i need a "lag-less" environment. My main programs ill be using is xcode/eclipse and photoshop but in the future should my app render some profits ill be moving on the 3d game development. But that would probably be next year or so. Advice please thanks.