Hi Luc,
I really don't know what exactly what FRP is. Every time i read about it, I figure out different things depending on the library.
I used the term event in a wider way as something that happens in the computation no matter if it is generated inside or outside. Workflow does not handle -external- events althout it can be used in this context, like the example loop that I wrote above.
I think that it can be used to recover the state of a FRP program after restart, in the same ortogonal way than in the example above, lifting the computation with the workflow transformer