VideoGamer.com reports that Mass Effect 2 is coming to the PC platform, based on a conversation with BioWare's Matt Atwood. While Matt would not say whether a PC edition would be released simultaneously with console editions of the RPG sequel, he did say "because we've got a really great PC fan base we think it's really important to deliver the PC experience as quickly as possible. Look for more news on that soon."
http://www.videogamer.com/news/14-03-2008-7779.html