IIRC, Dropbox has HTTP-based API that allows basic file operations, like uploading, downloading and listing files. So, proprietary client isn't really required.

IIRC, Dropbox has HTTP-based API that allows basic file operations, like uploading, downloading and listing files. So, proprietary client isn't really required. Well, if someone would code a Dropbox-based TAHOE-LAFS backend, I'd seriously consider really using Dropbox. (My phone came with 1-year "free" 50GB offer, so I'm using it for some completely non-private files, like my cat's photos I've publicly shared.)