[kansface]

No, it won't be. Polling the filesystem is not a scalable solution. OsX will hit the file descriptor limit on mostly anything you want to watch. Of course, you can up the limit, but thats a losing battle because poling 10K files per second doesn't work.

The correct solution involves using FSEvents (which blows), and system poling when you get an event. Inotify is good enough to get away with no poling. The native windows change watcher isn't bad either.

Even if this weren't the case, the value that dropbox provides is far greater than this potential solution for most people- ie, there is quite a bit of room for something to go wrong running your own duct tape dropbox. Syncing 99/100 files is not OK. Syncing 100/100 files, but only after 2 weeks isn't OK either.

source: I built my own ducktape dropbox (sortof). https://github.com/Floobits/flegmatic