Valve Software and its announcement of SteamCloud is a prime example. As reported by John Walker at Rock, Paper, Shotgun, SteamCloud will let anyone using Valve's Steam PC game download and networking service carry over saved game files, mouse, and keyboard configurations and other player-specific info regardless of where you log in. In other words, if you're at a friend's house and you want to jump into a game of Team Fortress 2 on his or her PC, all you need to do is log in to Steam and all your settings are there.
