Hello Mac users, I have a 2Gb i5 11" MBA (mid 2011) with Lion and I use it currently for light work. It is the only Apple device that I have and am happy with it. Now I wish to start IOS app development on it. With my current usage I generally have 750Mb to 1Gb RAM left free. I would like to know if I should upgrade to Mountain Lion as the system requirements is same as Lion. My primary concern is will I be able to do app development work on 2gb MBA before/after upgrade? Is it wise to upgrade?