Really useful service this. Kudos to Guillaume for taking the useful Theme Check plugin and making it more widely available. I did notice a few themes that I tried, it said it they didn't have a theme name in the css file, even when they did. No doubt these little issues will get sorted out over time though.

Would also be good if it allowed for different versions of a theme. Currently if you try to validate a theme and another version has already been validated, it wont save the results.

Thanks for sharing this great service Sarah and well done Guillaume!