Spore

I've finally had a chance to try out the free Spore Creature Creator download and I've got to say it's entertaining. It really doesn't show what gameplay itself will be like - but it's fun to make a creature and animate it. Here's a picture of my very first creation:

FYI - the trial version is free, but for $10 you can upgrade to the full Creator. It has more options, i.e. appendages, and presumably a few more bells and whistles. The full-game comes out in September - my anticipation is only growing.