At this point, you cannot. AA is pretty good about updating the website with airline partners that allow for AA mileage earning or redemption: http://www.aa.com/i18n/AAdvantage/pa...lines/main.jsp. AA may send out an email if/when you can redeem on Air Berlin, but keep an eye out on FlyerTalk and the aforementioned website for info - though as mvoight mentioned, it may be a while longer...