Sony Online's all ages title Free Realms is a huge success. The publisher has announced that the game now has over 12 million registered players since its official launch in late April 2009. Of course that number does not indicate how many active players the game currently has.
Sony Online seems happy enough with Free Realms to launch a second free-to-play all-ages MMO this fall Star Wars: Clone Wars Adventures. However the company will still release traditional monthly subscription MMO titles like this fall's release of DC Universe Online.