At a GDC roundtable today, Sony announced an update version 1.5 for PlayStation Home which will  introduce real-time multiplayer support for games, as well as improved graphics and physics.

Sodium 2: Project Velocity (sequel to the popular Home attraction Sodium) was shown by developer Lockwood as the first title to take advantage of some of the new Home features.

Since its launch two years ago, PlayStation Home has evolved into a dynamic social game platform, and with the update to version 1.5, we’re giving developers the tools to create even more compelling high quality game experiences,” said Jack Buser, director of PlayStation Home, Sony Computer Entertainment America. ”Lockwood is one of the first to push the capabilities of this new technology with Sodium2-Project Velocity, and the result is incredible.

Version 1.5 of the Home core client is scheduled to launch Spring 2011 and is promised to allow creation of “fast-action” FPSs and racers.

Hopefully a reason to check it out again.