Google made improments to the chrome

Google announced improvements made to the Chrome OS in speed, simplicity, and security

• Instant Search was added to the Chrome Omnibox search box.
• The OS updates automatically, transparently to the user.
• Security will be built into numerous layers, and apps and plug-ins "sandboxed," so that malware cannot reach the rest of your system.

For more details: http://blogs.consumerreports.org/