Testing looks good. Between three computers, 2GB 1000 files syncing without errors. Two are W8 x64, one W7. Two home computers sync over LAN and over 3G to one at work. I have some wishes: 1. Allow exceptions in sync folder properties. E.g. Don't sync directory "myportableapp\cache", or "*.tmp" . 2. Syncing large amount of files create notification spam. Instead of hundred separate notifications one after another, it could just notify e.g. once per directory.