Since this whole bitcoin thing is in a legal limbo at the moment, it would be silly to come straight out and call your company/project a bitcoin bank or anything to do with finance. Instead call yourselves software developers and call the bitcoin side of things 'trade in virtual assets'. You can call your mining etc. 'research'.
While this may not strictly be true, for the authorities to shut you down they will have to prove that you are trading money. Since bitcoin is not money (at least legalistically) then they will have to change some laws before they come after you. Better not to self-incriminate if you can avoid it
