So here is my thought: - In a couple years Apple will drop the white macbook, and every macbook pro. - We'll get a lineup of 11, 13, 15 and 17 inch MacBook Airs. Why? - Unless you need storage/optical media or need to save money, there really is no upside to not getting an Air if you want anything 13 inch. - Apple is moving to flash, when it gets cheaper, we will be able to get 1TB+ storage in the airs on flash. - Optical media is dying. Apple will never get Blu ray, because there is no point to bother with ancient discs, when we can download 1080p movies from iTunes and our software from the Mac Store. - There won't be a lack of ports. The 13 inch has an extra SD card slot over the 11 inch. There is no reason to assume a 15 inch won't have ethernet and the 17 inch won't have everything it has today, while still having that awesome slope to super thin. - There is no reason to assume video processors and CPU's won't get small enough to be powerful enough for a 17 inch Macbook air "pro" laptop. So my guess, by 2013, every macbook will be a macbook air. And I cannot wait to get my 17 inch Air.