In a great analysis of Microsoft's latest announcements about Xbox Live Arcade for Xbox 360, Joystiq's Vladimir Cole details how Xbox Live Arcade is a growing threat to the traditional retail chain. And that's not necessarily a bad thing for game publishers: "Sure, the games on offer right now are non-threatening casual games, but it’s only a matter of time until gamers are downloading entire triple-A titles and not just demos of them. With more and more retailers moving towards the sale of used games, first- and third-party publishers are going to push the direct-to-consumer channel even harder." Check out the full story on Joystiq here.