In the following graphs, each bar represents one of the top 100 extensions, by usage. The high of the bar is comparing relative usage. I.e. the most used extensions have the highest bars. Positive bars are compatible (blue), non-positive are not compatible (red).
Top 100 extensions claiming beta support (3.0b*, blue), non beta support (3.0b* red)
Top 100 extensions claiming alpha and beta support (3*, blue), non alpha/beta support (non-3*, red)
Will this analysis also be performed for themes? Themes, like the extension, do need serious updating to get them to work suitably with FF3 to support all the new features and to include all the fixes in the theme code itself.
These metrics are a tad confusing and could do with a little bit more explanation