With a scheduled update to firmware 3.60, The PS3 will be able to transfer its saved game files into the cloud network. It will be tied to your PSN account so as long as you have the game, you can access the save files and play it on any other PS3. This is akin to what we have for a good portion of games for Steam and of course OnLive, which relies totally on saving to the Cloud.
(via Gamasutra)