Microsoft said that "they'll be launching another way to browse content on Xbox LIVE Arcade, calling it "Destination Arcade".
"With a growing library of over 250 Arcade games, Destination Arcade will allow users to browse games in "easy-to-use visual browser" which'll feature new ways to sort titles "by price, community rating and more." This new browser and its features should allow users to discover new Arcade games and additional content. A news feed will also debut in this browser, allowing users to see new titles easily and will tie in with Xbox LIVE to show games that a user's friends like and recommend.
Also, stay up to date on latest arcade releases through a news feed and also find out what games your friends like and recommend. This brand new recommendation engine & visual browser app will be available in the US on July 14th from the Games Marketplace section of the dashboard," stated Major Nelson.