The third part of the four-part series just came out and again, it is a great remix that explains how innovation is rather based on imitation, transformation and recombination than mythical creative genius.
Very snappy UI and good drag & drop interlinking support. I also like that you can preview prototypes by sending a simple hyperlink. Cons: The individual stencil options are more limited than in other tools.
I got the game recommendation from Hunch - and I love it. It is more about story than about gameplay and unlike most other games. Cons: If you expect to beat the high score, this is not the right game for you.