"Tomb Raider: Underworld, previously known as Tomb Raider 8 during early development, is the eighth game (and ninth release) in the Tomb Raider series, and the third game in the series to be developed by Crystal Dynamics. It will resume the adventure from where Tomb Raider: Legend left off, and will be set primarily in Southern Mexico, where Lara Croft uncovers portals between her current world and the underworld that are opened during the five days of Wayeb' in the Maya calendar.[2][3][4] Lara may also visit Australia, Easter Island, Rome and the Vatican, Mesopotamia, and the Golden Triangle.[5] It was announced on 10 January 2008 that Tomb Raider Underworld will be released in the fourth quarter of 2008, as opposed to June.[1]"

Wiki

Wow, 6 platforms, including the DS? That's ambitious!!!

Its just like them... you never know when any tomb raider game is going to come out... I think every single one has been delayed since 3...