None to unlock
On the NeoGAF forums, 5th Cell's co-founder Jeremiah Slaczka has revealed that the Wii U doesn't have a universal system for achievements like the Xbox 360 or PS3 (trophies in that case).
"There are no Wii U accomplishments that are system wide. Scribblenauts Unlimited loosely has them in the form of 'Global Starite Shards' which is like a giant checklist of global things to spawn and do in the game that aren't area specific." - Jeremiah Slaczka
Clearly developers can implement their own achievement systems in games, but it won't be a general Gamer Score or trophy cabinet. Do you think Nintendo has made a bad call on this one?
You could take the view that the Miiverse features are like a more socially-oriented way of logging your progress in games.
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