The Xbox LIVE Arcade dashboard-like theme won't be like that next week.
Releasing next week, Xbox LIVE members will be able to download a application (similar to the way you had to download Facebook, Twitter, Last.FM, Halo Waypoint, etc.) that will enable them to get through and find games faster that are located in the Xbox LIVE Arcade.
The new experience of browsing, called Destination Arcade, will let you find games similar to the ones you've played, along with the ability to "Like" a game, similar to what you've seen on Facebook (kinda like that button at the bottom of the article). In addition, you can even look at XBL Arcade games your friends have played. And the games you like will also give you a recommendation list for other games similar to it.
Destination Arcade will launch next week (July 14th, 2010) for free. It will be available in the Games Marketplace on the Dashboard.