Hi Joe I am very pleased to see what you are doing for Bitcoin in Berlin. I recently got my first chance to introduce Bitcoin to some willing newcomers here in Toronto and you will enjoy this experience. I think this would be a great opportunity to introduce them to WalletBit both as a merchant solutions provider and online wallet service. Email and regular Bitcoin transactions are free from your account with SMS transactions available for a nominal fee. At a flat rate 0.89% for Bitcoin deposits we offer the most affordable Bitcoin merchant solutions option. Our Mobile Checkout and WalletBit Mobile make it easy to access, accept and send Bitcoins anywhere in the world for any local currency equivalent. Because our service is html5 based it is available on most Android, Apple or any other htm5 enabled device.
WalletBit was founded in Denmark in July 2011. If you would like any more details or assistance, please feel free to PM me or contact us through the official channels on our website.
I'm still wondering whether the 0.89% include the currency conversion and forwarding the local currency to a SEPA account. This would be the only problem left. To accept payments, the merchants in question will most likely use Bitcoin Wallet for Android on their Android devices, which already includes a currency converter. And the fees are only 0.00%.
The Bitcoin-Kiez intends to use Bitcoin as a "local currency with global reach", so if everything works out, they'll be just using their sales in BTC to stock up on supplies or eat a nice dinner at one of the competitors places.
So in the beginning, no fiat exchange will be needed. Unless sales skyrocket, I guess, which would be pretty awesome.
Is there any advantage using WalletBit compared to e.g. the Schildbach client for a small brick-and-mortar place?
Very great news! 
