I'm wondering about publishing a context assigned to a co-worker — not sync-able, just viewable online, or exported somehow, then emailed...
Just as I'm typing this though, I'm realizing that I can highlight a project, hit Print, and choose under PDF, Mail PDF.
Not what you're thinking about though. I just found this article comparing Ta-Da lists with other options:
http://freelanceweekly.com/2009/03/2...is-the-leader/
Checkvist has some import options, so I wonder if you could export a folder / project as CSV, and then import into Checkvist. I think that'll work for me — still not syncing or "interacting" of course...