The MMO Free Realms appears to be a hit for Sony Online Entertainment, having reached an enormous milestone on June 12th.
Free Realms first passed the one million mark 18 days after it’s launch on April 28th, and now has a total of three million unique players. The MMO is available for PC, and currently in development for PlayStation 3. SOE was contacted about the state of the PS3 version, and they responded that the PS3 version is still in development.
We have yet to see if there will be cross-combatibility between the two platforms.
[Source]