The new UI Update features a sleek new layout and user interface, improved achievement access, as well as the ability to add customizable categories assignable per-game. The Steam Store has also received some tweaks and updates, as well as client updates, bug fixes and more. Did I mention how amazing the new Steam looks in Windows 7? Grab some Kleenex, you're about to start drooling.

Most notable features of the new UI update are:

• Complete overhaul of Steam client UI design to improve discover-ability of features and to better expose all the information related to games in your library
• Complete overhaul of in-game overlay UI design to create a richer in-game experience exposing context sensitive information related to the game you are currently playing
• New game details view, presenting a detailed view of all the information for a single game in your library
• New grid view, presenting a graphical view of your game library
• New news page in the store/client/overlay that aggregates Valve related news sites, official community groups, and third-party gaming news feeds
• New downloads view in the client, making it easier to track your progress downloading new games or game updates
• New Steam store design, including more integrated community features, improved recommendations, and improved video and screenshots viewing (and much more!)

So whether or not you've joined the Beta as of yet, keep your eyes peeled! It will be in full release this coming Monday. Check out Steampowered.com for a complete list of what's to come from the new Client update and to get in on the action.

Steam Beta UI Update [via steampowered.com]