Did you know that Google has a wonderful hidden feature?  It is the Google Calculator.  For example, in the standard Google's search window, you can enter an expression such as  ((3*256)+7)*2, press the Google Search key, and Goggle will give you the answer. 

The icon on the left will take you to an interface we would like to propose to Google that contains an X-Number keyboard for the Google Calculator.  And then, sometime in the future, this wonderful feature will be no longer a hidden feature