I have P5 too, but I keep going back to PP4 because of it's simplicity. I keep packing in my new stuff inthe PP4 runtime library so I know where to find things. Plus I have some python scripts that won't run in P5. Not to mention the walk designer in P5 still doesn't work. Eventually I'll get the hang of the new features in 5, but it's nice to know how people are organizing their stuff.