Most of these apply to any service that shares a folder on your computer with other computers.<p>Things that are unique to Dropbox:
- "Favourite" files
- Upload via URL
- Host Web Pages<p>I use SugarSync and everything else seems to be stuff that I can do with that service. Of course, there's thing that SugarSync does that Dropbox doesn't seem to (like multiple sync'd folders instead of just a ~/Dropbox folder). Ditto going the other direction - SugarSync doesn't have an official Linux client, which is a bit of a pain point for me.