Tough choice. It is about a $100 difference between the two machines. I like the small fanless design of 12 inch Macbook with 256 memory. However the 128gb seems ok for now on the new Air and I get slightly better performance and some new features and I keep $100 in my pocket. The only things my computer will be used for is web browsing and light document work if even that. If i decide to go back to iPhone I will use itunes for transfer and back up. Part of me is saying spend the extra $100 get the more memory brighter screen and portability. The other part says you may only browse the web say the $100. Any thoughts here to help make me lean towars one direction or the other?