For the ease of use of a someone who would like to use your theme as a starter theme, please remove the shortcut code, especially with the font delcerations.
font: bold .9em/1.5 'Droid Sans', arial, sans-serif; is pretty time consuming to remove 'Droid Sans' for everytime it is written in the style.css. It is easier if it is written as
font-family: 'Droid Sans', arial, sans-serif; font-weight: bold; ...
Otherwise, this is a great theme.