They did bring back Icons for a little while, only to quickly remove it. And that's a good thing, because instead of being about video games it was instead about tons of random non-game related stuff. I don't even remember what, I watched it once for two minutes, turned off the TV, and never went back to that show. I gave it chances though, I looked in the TV guide to find out what it was, and it was never game-related.
They've still got Attack of the Show, which I think is actually not bad. I watch it from time to time. It's funny, it's sometimes about games, and I just like a show that tells you about recent technology news.
But seriously, G4 is going the way of MTV in the sense that MTV now has nothing to do with music (not like I've watched it more than once, but I only had to watch it once to find that out). I don't think "TV For Gamers" consists of one show about video games and one show about technology. Plus, Cops, Heroes, and their collection of foreign stuff doesn't have to do with them. They really don't belong.
Oh, and Code Monkeys. It's a pretty good show and is tied in with video games which is good, but I'm seeing it on less often. Maybe I never happen to notice when it's on or the people running the network just got bored of video games.