I haven't read through this whole thread, but here are my main concerns:

1. Having lived a long time in France, I know how difficult it is to open a single Credit Agricole bank account if you do not have French citizenship. To me, it seems impossible that accounts could be opened in the names of your Bitcoin depositors and issued IBAN/SWIFT numbers for international transfer, if you do not have the account holder present with identification and a French tax code to open the bank account. How do you plan to work around these issues, and if you're planning to allow non-French citizens to have access to French banks, each with their own account numbers, what type of license do you have to do that?

2. Although I understand you're still growing, the volume on Bitcoin-Central is nowhere near enough to bring in the money to finance the above licensing (or even the overhead that would be required to run such a business). Where are your funds for backing this and when will your customers see documents showing you are sufficiently liquid to trust with deposits -- let alone deposits guaranteed by the French government?