Mass Effect 2 Preview

There's a new preview of Mass Effect 2 up at Game Hub, though it doesn't appear to have any new information in it. A summary of a few 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.