Interesting stuff... Hmmm...
Height does seem... Off. On the clone anyway. A droid is what it is, I can sort of blow that off, but the clone's more than a tad disappointing.
The more I look at it, the more it bothers me... Thanks for the pictures Matt, they really illustrate how off these two are. The 2-1B droid at the Science Meets Imagination tour is NOT small. Not that small anyway. Definitely around average human size, which the original 2-1B wasn't overly large, so I really think that new one's way undersized if they're supposedly the same droid type. Far worse than the Clone.
however, the Clone's more annoying to me because, well, why the hell is a clone shorter than another Clone. The biker Scout Sculpt's not absurdly tall or anything, it's right around every Clone-ish type trooper. So yeah, that figure's pretty small.
Maybe he's a clone of Commander Cody since, well, his figure isn't exactly winning height contests either.