Man, hobby electronics has come along way. Love em' or hate em' 3d printing is really adding that polish which takes things from a hack to professional looking prototype much more viable. What a time to be alive! :)
I've printed a Raspberry Pi NES Case with my 3D printer. Most FDM printers will print in similar quality, and I'm not sure if he has done any post-processing on the finished prints.
Looking at the author's Thingiverse page, he says he has a CTC Bizer which looks like a MakerBot Replicator Dual clone.
Don't get me wrong, the thing Nintendo's putting out is a good deal for what it is.
But it doesn't look like it's going to be a better product than a lot of these hobby projects. It's certainly going to be running emulators, and there's no way to add more games.
If only Nintendo did the NFC cartridges thing with their Mini NES. That would've been so awesome and maybe somehow they could've had third parties rerelease thier own games independently through that mechanism.