Popping into the apple store tomorrow in Hong Kong. When i first read about this earlier today, i immediately unplugged my cto top spec'd rmbp mid 2012 ( i usually use it connected to the thunderbolt display 99% of the time) and downloaded coconutbattery to test it. Initially for the first couple of hours, the design capacity was hovering between 81-83% or so. it occasionally dropped just below 80% for a couple of minutes, but would then increase back to the 81-83 range. However, for the last 3 hours, its remained constant at the 79.8% mark. Looking at the system information, the battery information shows the same result too, at 79.8%. Hopefully this is true, and it is indeed below the 80% mark when apple run their checks on it.