I have a lot of respect for Valve, but it seems that their focus, lately, has been on their lesser products. We have constant updates to team fortress 2, a "new" Left 4 Dead, and now a full fledged Portal sequel. However, they've all but abandoned their most famous franchise, Half-Life. Not to say that Left 4 Dead wasn't fun, or that Portal wasn't a pleasant waste of an hour or two (yeah, I went there)... but it would be nice to finish what they started with the Half-Life 2 story. When you leave the player with a "cliff hanger", you have to be careful your audience doesn't ACTUALLY "fall off" before you finish the story.