The Wii has 76 titles that have sold a million units or more worldwide, says Nintendo -- and more than half of them are third-party games.

22 first-party titles and 54 third-party titles have hit the milestone, Nintendo business development head Dan Adelman said yesterday at the company's Media Summit, as reported by consumer site VG247. Nintendo recently revealed, for example, that its fastest-selling Wii title to date is New Super Mario Bros, which topped 10 million units last month.

Adelman also revealed stats for the DS, which has 45 first-party and 63 third party titles that have topped a million worldwide units. He also revealed the sizes of the libraries for Nintendo's downloadable platforms, Virtual Console, WiiWare and DSiWare -- they're up to 347, 189 and 127 titles, respectively.

As part of its event yesterday, Nintendo confirmed launch dates for its DSi XL in North America, its plans to publish Square Enix's Dragon Quest, and the rest of its first-half lineup, which includes Metroid: Other M and Super Mario Galaxy 2.

Gamasutra also spoke to Nintendo of America's Cammie Dunaway, who said Nintendo's strong first-party titles were driving sales of its platforms, and that it would work closely with third parties who "make particularly good use for our hardware, represent great innovation, and are going to have appeal to the right audiences."