Just tried a search and couldn't find anything here so FYI:.....
From Air Berlin web site:
Air Berlin will be leasing three Germania Fokker 100 jets from March onwards for the City Shuttle routes. The aircraft will fly in Air Berlin livery. Germania pilots will be in the cockpit, while Air Berlin’s cabin staff will be looking after the passengers on board. Since Germania-Express (gexx) will be discontinuing its flights from Hamburg, Berlin and Düsseldorf to Zurich and Vienna, passengers will be able to transfer to Air Berlin. From 29th March this will also include the Munich-Vienna route, where Germania-Express has been operating two flights a day, and which has not been one of the Air Berlin routes in the past.