I just tried it today at Gamestop. It is actually much smaller than it looks. It's certainly not pocket-sized, but it would still make a sweet portable. My friend preordered the U and I'm gonna have to try it.
Also, It would certainly be a shame if something happened to his controller...
EDIT: That's a great name for it by the way, The U ...
...and you heard it here first! ModRetro Forums, Origin of the term U!