Is anyone else as frustrated as me at Apple's refusal to produce a power laptop with a quad core chip, or indeed to keep up with new GPUs in mobile products? I cannot quite believe that a quad core has not made it into either of the last two releases. Am now getting very close to going for something like the Dell Alienware models, with both a quad-core chip and an Nvidia 260 GPU (with options to go faster still). This would be a thousand times more useful to me than utterly irrelevant developments like being made out of one piece of metal, or a long-life battery, given that I move from mains to mains most of the time. Please put the go-faster engineers back in charge of laptops Apple!