Google is getting ready to publicize our Debian images more widely next week - we'll of course point this list to that once it's published. As part of getting ready, we've noticed and fixed a few small things that are worth changing.
* Image names can't contain underscores either. So now we're using debian-N-CODENAME-vYYYYMMDD as the format, and various tools and internal test suites will expect that. We are putting a more complete version in the image description, as you can see from my reply to Charles a few moments ago. For that description we're using "Debian X.Y.Z codename, built on YYYY-MM-DD". I'm currently using debian-X_Y_Z-codename-vYYYYMMDD.tar.gz in as the destination filename for my tarball uploads, but nothing depends on that.
* I realize the changes from the previous point should be rolled into the tools. This hasn't happened yet, but it's on my to-do list. Feel free to beat us to it if you want.
* Please don't rely on any of the current images except debian-6-squeeze-v20130502. The rest will be removed on Monday most likely, and a post-release wheezy image will be added, probably named debian-7-wheezy-v20130506. The current images will remain available between now and Monday.
I think that's all I need to mention here. Besides that, thanks for your encouragement and we always welcome your involvement!