This week's Steam Marketing Message mentions the two Valve nominees for the upcoming Into the Pixel competition, and puts out the word that the Half-Life 2: Episode 2 Orange Box is in "the home stretch," as they've completed the developer commentary that will be part of the coming release:

We're now in the home stretch on getting everything finished off with the Orange Box games. Just this week, we've finished recording and placing all of the developer commentary for the three new games. Episode Two, Team Fortress 2, and Portal together will include over two and a half hours of new commentary that should help shed some light into the thinking and challenges behind these three new games. This is all in addition to the hour or so of commentary included in Episode One. Commentary will be included on all three platforms (PC, XBOX 360, and PS3). Here's Merle Dandridge, the voice of Alyx, talking about Alyx.