oooo, a Valve related surprise! Here's hoping it isn't Left 4 Dead 3! Half Life 3 or even just Episode 3 would be nice...
ya, though after all this time, episode 3 would work better as a prelude to Half-Life 3, rather than just episode 3
If Left 4 Dead 3 was announced there would probably be an uprising against steam given what happened when Left 4 Dead 2 was announced XD.
Valve are without equal. They really are the most awesome company ever. They make me feel all warm inside
The surprise will be Portal 2, HL2:Ep3, CS:S 2 and that Dota style game they are working on all coming out together in the mauve box.
Thinking about it, I reckon they'll be releasing Portal 2 on Windows & Mac as they have announced, but they'll throw in a linux version for good measure! Something on Episode 3 would have been leaked by now and likewise, news of Half Life 3 would have also found its way out onto the internet. If I'm wrong it'll be one of the best kept secrets in a long time.
I'm hoping the new multi player game they work on to come with episode 3 will be more like TF2 in terms of support as opposed to Left 4 Dead 1 and 2.