Share information between Web Dynpro applications

Hello,

I would like to know if there is a way to share data between different Web Dynpro applications. My Web Dynpro just consist of different ivews that displays information coming from a BW system. Some BW information may have to be displayed in several application/view (I have one application for each view) I don't want to connect and read BW each time for performance reasons. In a classic web application, I would have used http session to store the data but I think with Web Dynpro it's impossible to access http session.

Any help would be greatly appreciated !