There are two graphics cores in the MBP, each capable of driving two displays... I'm wondering if anything can be done via sofware to get them both to output a single "head" via the Thunderstrike Thunderstruck Thundercloud Thunderclap interface. Oh sorry, I mean Thunderbolt.

Argh, annoying and totally forgettable name. That's probably also why HTC/Verizon chose it for a handset.