Sponsors now don't disappear after moving between various screens
Added the about page as a tab in the main screen.  We can't have it as a menu button item because Android has deprecated the menu button in favour of the action bar.  To have in the action bar we'd have to have a one line action bar always visible. Ugly.  I'd prefer the sponsors to be in the About page, but the team didn't like that.  This is the only other option I can of.
http://android-developers.blogspot.com/2012/01/say-goodbye-to-menu-button.html