I was planning to get MBP 13 but after last update I'm thinking of waiting bit longer before Apple gets its act together. One of my colleague uses Z11 on daily basis and I've seen machine on daily basis. It has everything that MBP 15 has and few more things and still it can manage to push every thing within 13" form factor so why cant Apple ? Here is quote directly from my friend which makes every MBP 13 user cringe little bit considering fact that Apple brags lot about Mac v/s PC war. Probably Mac lost some of cool in this release. As a Z11 user, I can tell you that it's an awesomely performing machine...blisteringly fast. And it's a good gaming machine to boot. With an independent (no broadband subscription required) GPS receiver, integrated broadband (if I ever decide I want to use it) a full 1GB of dedicated Video RAM,up to 512GB SSD storage, 1600 x 900 Sony display tray-... See Moreloading Dual layer DVD writer (blue ray optional)...on and on the list goes. Oh, and it stays cool to the touch by some miracle. I was just gaming on it (Bioshock 2) for an hour or so and both the top and bottom was cool to the touch (or BARELY warm), even though the air leaving the exhaust vent was very HOT. Sony might be letting some of it's model lines "slip" in engineering prowess, but the Z series shows they still have it when they choose to.