I’ve release a first version of QSyncThingTray for OS X. It’s (yet another) traybar app written in C++ and with Qt. That should make portability to Windows fairly easy down the road. Unfortunately I haven’t had the time to do that yet. If someone wants to help out, its highly appreciated
I’ve included some basics (e.g. getting rid of manually setting up a plist file in OS X) but will try and add more features down the road.