Following Condemned’s demo release on the Marketplace, Quake 4 has released their demo.
Some people have mentioned that getting demos of all the games that are out is pretty rediculous because you can’t try things out before they are released. I think that was Microsoft’s plan the whole time as it lets the Official Xbox Magazine to release demos of games to be released later with their magazines.
So if you want to get the cool demos, you still have to shell out money to grab the magazine.