Investing in what exactly and how does the whole thing relate to Bitcoin discussion and as a matter of fact, this topic is an off topic and at that, you have to move it from the bitcoin discussion board.

-Islamic law has a lot of restrictions on what type of investment to involve in to be accepted before Alah and as a matter of procedure, the Islamic banks in my country do not charge interest on loans given to their members,  but I don't know if the proposed Islamic coins are backed by any recognize Islamic institutions or body.