How about adding to GDShare two options that would help not only HTML5 games but all GD games in general?
Namely:
- Leaderboards, Online Highscore list, so game creators would be able to easily set such system up if they want it
- Room multiplayer. Think of it as of lobby-based multiplayer popular with most online FPS games. Basically it would be extension of current networking, GD share would only give game list of rooms, name of each room and IP room was created from (completed with a port), then game would need to connect to ip and port using network extension.