I'm torn because I want a MacBook retina (not interested in cmbp) with a quad core processor and 16gb ram. However thus is only available in 15" when I think that's way too big. My hope is that the haswell retina will let me build this type of machine but I'm not holding my breath, either for the haswell retina or the BTO option. My current thinking is that the current 13" retina and Haswell 13" MBA are actually very similar in their configurable options. They each can go to 8gb ram, and have dual core processors. Of course the retina has the screen and the MBA has the battery life. But the key is that you cannot currently get 8gb of ram or a quad core processor on ANY 13" Apple laptop. Has Apple ever offered a quad core processor on a 13" laptop? I can't seem to find any historical data on specs offered so I figured I'd check in here. If Apple has never offered a quad core processor with a 13" model, that will go a long way towards my belief that Apple is highly unlikely to offer one with the (eventually available.... Whenever that might be) haswell retinas.