An update to Big Picture Mode for Steam was just released mere moments ago. Let's take a look at that changelog, shall we?
Changelog for September 13, 2012 update to Big Picture Mode on Steam
Remember that the beta for Big Picture Mode is available to everyone. Simply opt-into the Steam client beta in your Steam options and you're good to go.
Changelog for September 13, 2012 update to Big Picture Mode on Steam
- Fixed Big Picture in-game overlay flickering in some games (Audiosurf, Bejewed 3, many more)
- Fixed the Big Picture in-game overlay clock to reliably update the time value
- Decreased GPU memory and computation usage by Big Picture in the background when a game is running
- Decreased general GPU memory usage by 15-20% when Big Picture is in the foreground
- Decreased size on disk for ambient music in Big Picture (speeds up Steam update download/apply)
- Fix ambient background music not reliably playing on initial startup
- Added support for d-pad navigation in all places it is not otherwise overridden (text entry, browser)
- Added additional error handling & reporting to Big Picture checkout
- Added search in progress indicator & error messaging to Big Picture store search dialog
- Fixed Big Picture search dialog being displayed while screensaver mode is active
- Fixed issue causing Big Picture checkout to rarely display a failure when the checkout actually succeeded
- Added support for using the X button on the gamepad to exit fullscreen mode when using Flash in the Browser
- Fixed not being able to delete the top level web favorite with the mouse
- Fixed mouse scroll wheel not working if the cursor goes invisible and you don't then move the mouse
- Changed mouse panning mode in the Browser to dismiss if you click and hold to pan, as well as the existing behavior
- Fixed trying to activate a product in the desktop client crashing
- Fixed display of chat status elements in Big Picture
Remember that the beta for Big Picture Mode is available to everyone. Simply opt-into the Steam client beta in your Steam options and you're good to go.