I think the differences are significant, and in some respects, at a broadest level, no, I don't think there's much difference. That is, to set aside a general thrust and a general belief that the public has a right to know should exist in any form of government, whether in a parliamentary or a bicameral system, as we have.
In specific issues, yes, there are quite large differences--for example, on spending transparency. In the United States, we have a system where the President proposes a budget and then Congress has to dispose of that. So the disclosure system allows for much greater participation by the public in the budget process. It's not simply a transparency issue; it's also a participation issue, to strengthen the democratic process.
In a parliamentary system, that isn't quite a parallel structure, so you would want to probably think through, in a parliamentary structure, where are the opportunities for participation, but also simply where transparency can be useful for an accountability point of view.
One of the ideals in a parliamentary structure as well as in the United States' structure would be if we could tie together the spending data with performance data. Then we could begin starting to talk about not just simply who got how much money but whether or not the money is used wisely. It would be an opportunity to talk about how to make government better. That transforms across all different forms of government structures, I think.