Crowdsourcing the creation of controller keymaps for the existing PC games is a cool idea. Of course there’s no way to tell about that controller until you get your hands on it.
Overall, I’m excited to see how these Steam Machines pan out. Another open platform disrupting the space will be a lot of fun.
Go play Naya’s Quest.
It creates very interesting puzzles based on simple mechanics, and does a great job or remixing on top of itself toward the end. The New Game+ lets you see behind the curtain as a reward, rather than just making the game more difficult.
On my last project we leaned heavily on rapid prototyping, and while there was a fair amount of throw away it did help us ‘find the fun’. It is easy to spin and burn time heading down blind alleys, but keeping a focus on the questions you are trying to answer helps immensely.