this is a very good pointanyways, the islamic banks IS A MAJOR step.. atleast in theory. 80% of the work has been done. musharika and modarba are halaal. but some aspects are still haraam.
we cant just expect a 100% Perfect Islamic Bank to pop up out of the blue
they r gradually going towards Halal Banking which shuld be appreciated
who knows in the future we might actually see Halal Banking happen