That said, skimming through the feature lists I've already found some things I did ages ago, some that I was planning to do now, and some that I'll be adding to my task list as I think they are great ideas.
Only problem is that it was a lot of work, so if you want him to complete the series, please comment and let him know!
So, who's going to write the CF companion?!
I think it is safe to say there is still plenty of room for both existing frameworks to extend the scope of what they do and for new frameworks exploring different metaphors. I think there is also a place for frameworks that keep true to a central vision and (for instance) stay solidly in the MVC space. DHH noted that Rails is not the "one true framework" as the more problems your framework solves, the less suited it is to each problem, so frameworks optimized for subsets of use cases will make more sense for people whose use cases consistenly fall within those spaces whereas more generalized frameworks will fit better for people with a wider range of needs who are prepared to spend a little more time on each project in return for a framework that provides them with more flexibility.
I think the next couple of years are going to be really exciting times as we look at all of the frameworks (especially outside of the CF world) and move the CF frameworks world to the next level.
What are you working on or hoping for in terms of ColdFusion frameworks and features?