FreeRealms is accepting beta signups

SOE's next virtual world, FreeRealms, is accepting beta signups now. FreeRealms is obviously targeted at a younger audience, and will have a free-to-play option, as well as optional subscription and microtransactions. But from what I can make out from the videos, there are also MMORPG elements to the game, fighting monsters, puzzles, mini-games, even a trading card game. If SOE gets the mix between virtual social space world and MMORPG right, this might become a huge hit.