"LittleBigPlanet is so expansionary," said Koller to MTV Multiplayer. "We certainly look at [the] LittleBigPlanet franchise as a going forward franchise for us, and that speaks to the PlayStation brand overall," he added.

Koller confirmed that the game has a future, though he was mum on what shape that future might take: "We're watching the UGC [user generated content] and seeing how that's playing out. But for the future, I think certainly, we'd look at a wide variety of opportunities. Whether that's the PSP or not, I can't really say."

Media Molecule posted a pair of job openings in early October seeking PSP programmers and specifically mentioning "exciting new LittleBigPlanet projects," leading many to suspect that a littler LittleBigPlanet is in the works.

Switching gears, the Sony rep expressed an interest in the budding portable music-rhythm genre after the runaway success of Vicarious Visions' Guitar Hero: On Tour (DS).

"It's of huge interest to us," Koller asserted. "For us, we look at the music area as being critical for PSP and the social area of interest as well," adding that music is the number-two use for the PSP behind portable gaming. "So, the marrying of those two concepts is of huge interest to us."