I upgraded from 10.10 to 11.04 today, so I'm using Unity now, and Dropbox has disappeared from the indicator area. It still works, but it's hard to use now.
I've already tried removing it and reinstalling from the site. I noticed that this readds the dropbox repository to the APT sources (the upgrade disabled it), but it's a maverick source.
How can I get it back?
maverick
repo installed, so you can at least rule that out as part of the problem.