Google will be pushing the Android OS 2.3 update out, and it’s ready for you to hit that upgrade button. Gingerbread brings along Wi-Fi calling at the OS level, faster keyboard support, even better power manager, download manager, UI refinements and updates, along with support for some pretty sexy hardware that the current Nexus One unfortunately doesn’t contain.

Check out what is in store by checking out this PDF file

http://static.googleusercontent.com/external_content/untrusted_dlcp/www.google.com/en/us/googlephone/AndroidUsersGuide-2.3.pdf

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