From what I have read TF2 is technically possible between PC and 360 users but they are not sure if this will make it into the final version. As for the PS3 it was deemed unlikely.
I did try to look up HL2 sales on the VG website but apparently it is not a million selling game. Well I will eat my hat if Valve have not managed to shift 1 million copies of even the PC version of this game.
Even for people who already may own HL2 and/or Episode 1, this is likely going to be extremely popular. Portal or Episode 2 by itself would probably attract moderate sales, so having HL2, E1, and team fortress2 included will only help it further.
Since I'm guessing that this is going to be priced very competitively as a console game, I expect sales to be very high.
A couple of days ago I saw a strong indicator that there will be no cross console play. I'll post an article about it. So it looks like just pc-360 and no 360-pc, who knows if pc-ps3 will happen.
After the relatively short Gears of War, everyone's going to want to get into a strong solid FPS. This is the perfect product for that: a critically acclaimed single-player game, plus a proven online multiplayer mode. Add to that the fact that players Team Fortress 2 on XBox Live can play against PC players as well, and you've got killer game.
This is such a good bundle and a strong product. The addition of Team Fortress 2, Portal and the both the adds for Half Life 2 (Ep 1 and 2) make this such a bargain that would be very suprised if it only made 1 million sales in its life time.
This is a perfect game for the Xbox live system too.
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I did try to look up HL2 sales on the VG website but apparently it is not a million selling game. Well I will eat my hat if Valve have not managed to shift 1 million copies of even the PC version of this game.