Jeremy and James,
You might want to check the latest 1.0.2 nightly build for a thing called "FlowExecutionPropertyResolver" and "FlowExecutionVariableResolver".
The former, when used with the latter, gives you access to scopes flash/flow/conversation plus searching capability through each scope when no explict prefix is used (e.g. flowExecution.foo vs. flowExecution.flowScope.foo)
It'd be great to have your feedback on this before 1.0.2 goes out--there has been a good deal of work done in the JSF area for 1.0.2 in general
Core Spring Development Team