I ended up pulling the trigger on a Macbook Air yesterday for school and now am having buyers remorse. Although my needs are limited, 4gb of ram and some extra battery life would do wonders. Luckily, I haven't opened the box yet. Having said that, from everything I have read, Macbook Pros seem more likely than Airs to be upgraded at the Keynote (haven't heard many rumors about the Air what so ever) and if so might return the Air and get an updated Pro if indeed they do get upgraded. What are the chances an Air might be upgraded at the Keynote? Surely nobody knows but Apple but an educated guess would be great! If you feel they won't get updated at the Keynote, an educated prediction would be helpful or if there are rumors that would suggest a later time, a link. Thanks in Advance!