I haven't seen any as of yet. We'll see. That having been said, I admit NSMB and NintendoLand are some pretty great games. I picked up Just Dance 4, the kids should love that.
The one thing I notice on the WiiU is that their online store sucks. I can't quickly sort out what's a demo, or if demos are available, and on the WiiU you have to go into the Wii sub menu to get to the Wii store, so you actually have two storefronts
Nintendo has no control at all over 3rd party releases. They have to be submitted. There are some titles out there I would still want, but I'll be honest.. almost every game I care about that was on the NES/SNES is already available right now.
They've got to fix the storage problem on the Wii. I'm totally out of space, and swapping back and forth amongst GB cards is a real PITA.
I'm surprised how much audio/talking their is in the Strongbad games. Very funny though.