That leaves me with a bit of a quandary: I want the portability of a 13", but I want the performance of a pro.
Which means no air, and no white.
This is how the differentiation between the product lines should be worked out:
Air: Same as before. It's doing a good job filling in the ultraportable role.
13" Pro: Ditch the optical drive. Upgrade to sandy bridge (a non-archaic processor). Put in a (non-******) discrete GPU. Preferably AMD, since they've got a much better performance/watt ratio. Kick up clock speeds like usual, and increase battery life (significantly, too. There'll be extra room to play with, if there's no optical drive, for one thing. For another, i series is more efficient than c2d, and intel integrated, which will be used when the discrete isn't kicking in, is way more efficient than the old nvidia chip.) Oh, and blade flash memory, either alongside a traditional hdd or perhaps by itself in a greater volume.
13" Whitebook: Upgrade to Sandy bridge, but no discrete GPU. Intel's new integrated chip is good enough for a market-entry laptop. And market-entry as in sub$800.