The new Nintendo Account thingy is live:
https://my.nintendo.com/
Don't know if it's just Europe, but Flipnote Studio 3D is free through it as well. What was nice is that I purchased it from work and it started the download automatically. Nintendo are now only a couple of years behind the curve!
Once Miitomo is out and we can earn more coins too, we'll be able to get Twilight Princess Picross for nowt as well.
There's also a Mario brick block in the bottom right hand corner of the site. Click that and it'll go back to your Mii, which you cna then click a few times to get 10 bonus coins.