Same here. I set up a dropbox for every team I work with. I think the idea of using a dropbox rather than focusing on syncing computer folders like what sugarsync does will reduce the fear of some people in uploading their folder contents. Dropbox being a folder by itself give people that sense of security and also it's a lot easier to explain!
Agreed - I use it nearly daily. I can honestly say it is one of the few apps that has proven so invaluable to me that I have been inspired to tell countless friends, associates and customers about it...