My N900 with Maemo was fantastic. It's still working Just Fine, mechanically as good as when new (the Mercedes-door feeling sliding keyboard, for example), the only reason I'm not still using it is because it only supports up to 3G, and that isn't available anymore where I live. Such a nice phone. I could easily make Debian packages and install them, my minicomputer emulator for example. The MeeGo transition stopped it for me, and Stephen Elop's burning-down-the-house strategy killed everything.