Be still our beating heart. Just two weeks ago we heard Android 4.0 -- that upgrade lovingly referred to as Ice Cream Sandwich -- would be reaching the HTC Vivid "in the coming weeks." We even saw the update trickle in to select devices last week without any official notice from the mother ship. AT&T's finally ready to open the floodgates and pour the refresh out to the masses. This download in particular includes Sense 3.6, but throws in third-party Beats Audio suppo