In a statement issued to VideoGamer.com today regarding their article yesterday(that said no PS3 version confirmed), publisher EA said: "There is no information on a PS3 version at this time."
http://www.videogamer.com//news/ea_no_info_on_ps3_mass_effect_2_at_this_time_2.html
why won't they just confirm that it is not coming to PS3?