Google Shortcut Keys - Awesome
For all keyboard junkies out there - if you are also hooked on Google products (GMail, Reader, Calendar, etc), don't miss the option of using GMail with keyboard shortcuts. The are awesome. I loved the navigation shortcut (combination of pressing first G and then another key, neat).
To enable keyboard shortcuts, you will have to go to the settings under you GMail account and check off the option to enable it.