A twitter updated alerted me of this new tweet, done by the UDT Agency...
Talent Andrew Christian was booked for a Scribblenauts commercial!
So we don't know much, if at all, other than a real live person was booked for the position. Whatever it may be. A quick Google search of Andrew Christian reveals this guy:
Hmm! Intriguing! Stay tuned, as if they're casting for the commercial (and the game comes out in less than 3 weeks), I think it's safe to say we'll be seeing commercials pretty soon.