I currently have a late 2011 13" MBP (i7) When i originally bought it all i knew was that the perfect screen size for me was 13" and i wanted the best one i could get. It was my first ever MBP purchase. But all i find myself using it for is web surfing, watching movies, emailing and word processing. Besides that I have a BIG itunes library. I dont bring it out much because i find it kinda heavy. I wish i could just put it in a side bag and not notice it was there. I'm thinking of switching to a 13" MBA (i5) Here are my 2 questions 1) What will I lose by downgrading and will i even notice? 2) Should i wait ? is a redesign coming up?