Google has been working hard on improving the Chromebook user experience. Quite a lot of development work is going on which can be access through beta and dev channels.
The beta channel for Chrome OS has been updated to 29.0.1537.41 (Platform version: 4319.52.0) for all Chrome OS devices. As usual this build contains a number of bug fixes, security updates and some exciting feature enhancement.
The most notable feature is “improved video quality and reduced power consumption by enabling hardware acceleration on many more Flash video sites (Pepper Flash v. 11.8.800.94-r3)”
If you want to get early access to this development you can enable dev or beta channels on your Chromebook from the Help options on the setting page.
Source: Chrome Blog