BC2 was just showing off Frost Bite 1.5.
I wouldn't say Consols have a much bigger market, people just like the convenience.
Microsoft have sold just over 40 million consols. I'm hazarding a guess that a fair few million of them are replacements for RROD
Then you look at PC gaming...
Steam currently has 30 million active accounts, each account has access to over 1200 game.
Theres not much in it. PC gaming will always be far superior to consol gaming in every way shape and form.
BF3 wont follow suit of BC2. You will find that consol versions will have less features, because it's being built primarily for PC gamers and then ported and stripped down so consol gamers can play it. Not the other way around etc.