Catch a glimpse of the magic of Project Spark - Gamescon 2013.

[SvennoJ]

Now I don't feel so bad for getting stuck with windows 8 on my powerful new laptop. This looks like fun to create some stuff with. Though I wonder if it will be like LBP, millions of levels, 1% of them really worth your time.
Anyway looks perfect for playing with my kids, 4 1/2 is old enough to learn how to make games :)