you should try out syncplicity. they do backup and syncing like dropbox, but you can sync any folder(s). you can also share what you've synced with other people.
we just launched http://www.cellspin.net/ at the DEMO conference (http://www.demo.com). it is a service that provides easy to use mobile software for you to send your media from your phone to your favorite websites (flickr, facebook, youtube, etc). we also have a website where you can manage the content you have uploaded and keep track of what your friends have been posting. check it out and let me what you think (ian [at] cellspinsoft [dot] com). we're always looking for new sites to add as destinations. please give me any feedback you have! i'd love to hear from you guys.
