The Macbook Pro comes in 13.3" and 15.4". Those sizes are tried, true, and awesome. The Macbook comes in 12.1", which is pretty nice. To me, 15.4" seems great. 13.3" I'm just itching for the slightest bit more space. What are the chances Apple would release a 14" Macbook, as they cycle out Macbook Air? I've worked on 13.3" laptops, 15.4", 14"... I tend to prefer 15.4" and 14". 14" really hits a portability sweet-spot, with that slight extra screen space that gets me past the cramped feeling that 13" gives me. I can only imagine the next Macbooks will be thinner (redesigned), given the Macbook Pro is now basically just as thin (except the Pro doesn't taper off). A redesign, alongside the Air cycling out, could mean two size options?