Announced during GDC, version 1.5 of the PlayStation Home client will go live tomorrow morning, April 20. The update not only introduces engine enhancements designed to aid developers in making full high-performance games for the platform, but a number of interface tweaks as well.
Sony is launching a new Sodium themed private space along with the update, although Lockwood Publishing's futuristic racer utilizing the Home 1.5 framework, Sodium Two, is still in closed beta. You can find a complete list of the UI and functionality updates being introduced at the source link below.