One has a definite release date in the US.
They both have known line-ups.
I would wait until the date of Move release (if you are very serious about both of them) to see if we get more info on release date/price etc of the 3DS. At that date we will also know more of upcoming games for both pieces of hardware. I have no doubt you could come to a very good conclusion of what to buy by this time.
I voted 3DS (both for myself and for you). If your info is right, you do not have a portable gaming device and the 3DS sure as hell looks like a good place to start :)









