http://www.joystiq.com/2010/12/09/mass-effect-2-lands-on-ps3-jan-18-in-us-jan-21-in-europe/
"Speaking exclusively to IGN, Electronic Arts has given Mass Effect 2 on PlayStation 3 a solid release date of January 21 in North America and January 21 in Europe (that's in twenty eleven, folks). As previously revealed, BioWare is including a gaggle of bonus content with the Blu-ray version, not to mention a brand new "interactive comic" that fills players in on the story of Mass Effect 1. Given what we heard today about Mass Effect 3, we're just hoping everyone has enough time to catch up before a whole new outerspace epic arrives."
Joystiq confirms Mass Effect 2 releases in:
Jan. 18 US
Jan. 21 EU
Strange that the text of the post contradicts the title, but I think that was a typo.
EDIT - Went to IGN. It is Jan. 18 for US.
http://ps3.ign.com/articles/113/1139534p1.html
"Electronic Arts has confirmed to IGN that Mass Effect 2 for PlayStation 3 will ship in the United States on Jan. 18. 2011 and Jan. 21 in Europe.
Given that the first Mass Effect title will remain a Xbox 360 exclusive, EA and BioWare will include an interactive comic with the PS3 copies to help bridge the storylines. The choices made in the comic will carry over into your Mass Effect 2 playthrough.
Mass Effect 2 for PS3 also includes the previously released downloadable content Lair of the Shadow Broker, Project Overlord, Kasumi: Stolen Memory and the Blood Dragon Armor on the Blu-ray disc. The Zaeed and Firewalker content is also accessible through the Cerberus Network."
CANT FREAKING WAIT!!!!!!!!!!!!!