That's a much tougher question. I am still early in the process, so I don't have a clean and clear answer yet. I am trying to approach FRP from the perspective of GUI design. In this context continuous Behaviors and discrete Events are not exactly what a developer would want to deal with. I don't want to go into it too much now, but I will definitely post my thesis once it is done.

Also, thanks for pointing out the Opera mistake. It is on my to-do list!