Currently Being ModeratedNov 16, 2012 2:24 PM (in response to irit30)
Apple has not yet opened their own store in Berlin. So to the best of my knowledge, your sister will not be able to purchase an unlocked iPhone 5 unless she travels to another city.
Currently Being ModeratedNov 19, 2012 7:05 AM (in response to irit30)
To the best of my knowledge, the only place in Germany to purchase an unlocked iPhone is directly from Apple. If your sister tries to buy from any other store in Berlin, she's probably going to get either a locked iPhone that was hacked to unlock it or an iPhone sold in another country and imported into Germany without authorization.