Interesting, I really hope it's true because what we're missing here is the mass adoption, and the stores are those who can help and encourage the people to use bitcoin for example giving a little discount since the fees are less than a credit card for example.
Germany has been one of the countries that has been friendly towards bitcoin for some time now. for some reason we don't hear from it in the news that often though. and although the source of this news is not reliable but the news itself doesn't sound that unrealistic. with the adoption of bitcoin growing many merchants have been accepting it.