Using Google Docs no longer needs to only occur on your desktop as the latest versions feature a Mobile option. This means that those of us without an I-phone can access, edit, and share documents at any time.
Also this week came much needed updates for Google Maps for Mobile devices. Now many phones can easily access and view map data.
More locally, I have become enamoured with the latest Google Maps Street View for the Pittsburgh area. Yeah I can easily go and walk down the same streets, but sometimes a virtual stroll is just as nice as a real one. (Save for the benefits of actually leaving my desk.)