I'm glad to see this feature request is still being kicked around. I think it is important regardless of implmentation. I may have jumped the gun when I said "ala jsp."
In our case, any solution that would be run efficiently in the normal operating case, but still lets you refresh pages dynamically (using timestamp checking, or "hitting a button" somewhere) would fill the bill nicely. What we don't want is to lose sessions in the process.
Joel