Earlier quoted context omitted.
I don't think the laptop versions of the Core i* have 3 memory channels (neither do the Socket-1155/1156 desktop versions), so 3x4GB of RAM would be a strange/suboptimal configuration. There probably isn't enough physical space in a 13" laptop for more than 2 modules anyway (unless you sacrifice battery or optical drive space). Even soldering them to the motherboard wouldn't save much space - I think all current 4GB…
unless you sacrifice [...] optical drive space What they really sacrificed here was the opportunity to make a compelling product. It's 2011, when have you last time used an optical drive?
Frankly, I haven't needed an optical drive in a laptop since booting from USB drives became practical a few years ago. (happy MacBook Air user here)
It'll be interesting to see if Apple fleshes out its Cinema display into a combined docking station and screen using the Thunderbolt port's potential. Add a DVD drive, HDD for Time Machine, USB/Firewire controllers, ExpressCard slot, whatever, using the PCIe channel in the Thunderbolt.