Written by Richard 
TedTheDog revealed a few tidbits regarding PlayStation Home’s voice chat features. At the moment, voice chat has been disabled for all public areas and is only available in user-owned areas.
We’re certainly looking at ways of bringing voice chat back in public spaces in the future. We’d like to consider ways of achieving a balance between having a useful social tool and a means of annoying other people.
We have several features coming along this year that may very well tie in nicely with voice chat but until they arrive I believe voice chat will stay as it is.
Update: Locust_Star confirms this.
[ Source ]
