Mass Effect 2 - Preview @ Game Hub

Game Hub offers a preview of Mass Effect 2.  No new info about the game, it seems. Instead, have a summary of some of the new companions:

"Grunt" is a new character for Mass Effect 2, a violent and unpredictable Krogan fighter with huge physical strength who must be tamed, and trusted, to ensure Shepard's success. A deadly assassin, Thane, will also enter as a new character, a deadly assassin who we first met in June.

A third new character will enter in the form of "Subject Zero", a handful of an action-girl with some deadly combat experience and strength to bring to the party. With a mysterious past and hefty firepower she will be a valuable ally in Mass Effect 2. Subject Zero will be a formidable biotic - as powerful as she is intriguing, with detailed tattoos marking her favorite kills - "the good ones". Mystery and fascination surround this uncontrollable rebel, promising to bring some excellent depth and character development to the game.