I joined iminlikewithyou awhile back
I heard from a bunch of folks that the UI was awesome and they had done a bunch of things right.
The site was very cool but I wasn’t the target audience.
The service has evolved and they now have a really fun multiplayer tetris-like game called Blockles.
And I’m addicted. It’s so much fun.
Give it a try and send me a msg on Twitter or AIM if you want to ever play together. If I’m free I’ll do it.
update: wow, they also have a facebook app too.