Has the Chromebook Pixel convinced you to finally pick up one of Google's Web centric laptops? If so, you might want to jump onto the Chrome OS beta channel to get the latest features before anybody else.
The latest Chrome OS beta contains a number of new features, enhancements and bug fixes. Here's the full list:
Pepper Flash updated to 11.6.602.171
exFAT support on flash drives
Bluetooth UI improvements in the Status Area to ease connecting and managing bluetooth devices
Updated wallpaper picker UI (New style, All category)
Tab Scrubbing - Use three fingers to target and scrub between tabs - faster than mouse
Added support for ISO base media file format, H.264 video and AAC audio to Widevine Content Decryption Module (CDM).
If you don't know how to switch from the release channel to the beta channel, you can read up on that here. If you happen to come across any bugs, you can submit those here.