Nine Over Ten 9/10 writes: "Perhaps the first Massively Multiplayer Online (MMO) game for the PS3 is coming out tomorrow (!) in the form of Daikoukai Jidai (a.k.a. Unchartered Waters) Online: Cruz del Sur.
Currently the game is only available in Japanese and I've a hard time translating the official site, but here's some information: the game is selling at a retail price of 6,090 YEN (around USD 64) and each copy comes with 30 days of free online play. After that you'll need to purchase 30-day Play Tickets which sell for 1,575 YEN each (around USD 16)."