Thanks for the positive feedback. I've just posted the first non-beta version and made the Google Group open to the public (membership not-required). At this point I'm waiting to see what Omni comes up with before investing a lot of time in new features. Though even after we have an official app, this solution will still have value for people who need to share tasks, or want to have access from the iPhone without doing a plugin-sync.
http://groups.google.com/group/oftd
-Preston