Okay, all you game maker types, kodu is now available for download as a community game on Xbox Live. For a mere 400 points [US$5], you can create that great American game using Kodu intriguing icon-based development tool. You can purchase online, if you log into your account at the above link.
I will definitely grab it. Unfortunately, game sharing is cumbersome:
- Gamers sharing must be on each other’s friend list.
- Both gamers must be online at the same time.
- Both gamers must have Kodu running.
And you thought Wii friend codes were a pain. 
[Seriously, this cumbersome sharing process could stifle significant game sharing, as the creator has to share with each gamer. It's a shame that, when I start Kodu, I can't see any Kodu games created by friend and then download from there.]
If anyone has games to share, please feel free to add me to your friend list. My gamertag is on the right column.