Redmond, Wash. - Nintendo of America on Wednesday announced plans to launch its new downloadable game service, WiiWare, on May 12. Nintendo hopes developers will use the WiiWare service as a "breeding ground for new games," while consumers will see a wider array of titles for the console made available at a dynamic price range. The company also plans to release its exercise-themed title, "WiiFit," on May 19, which will also introduce the new weight- and motion-sensing Wii Balance Board accessory. The highly anticipated "Super Smash Bros. Brawl" for Wii will ship to retailers on March 9.