Earlier this year I was at the very meeting where Polyphony Digital's Kazunori Yamauchi revealed that we would be able to play Gran Turismo 5's B-spec racing mode on our PCs, through web browsers. If you haven't seen it yet, this is the mode where you guide a racer through his turns in races as a manager. Better guidance brings you a better racer, which gets you more money and more cars. The PC/browser functionality requires that you have your PS3 on, and you'll control it remotely.
Yamauchi used Twitter to update us on this feature's progress. Kotaku relays the information from his latest tweet. It says that B-spec driving from your browser is coming "early next year", and that he's "sorry to keep you waiting."