Last accessed page

Hi,

    basically I would like to know from which page does a request come from. Is there a way to get for instance the last accessed page. Does Turbine store information about last served page?
data.getRequest().getRequestURL() is not good for this purpose because in some cases I set the screen using the RunData object and that does not change the Screen name in the URL.
Is that something I need to check in my application server?

Thanks,
    Atti