Thanks the links, help, but I haven't found anyone talking about the KickFlash OS4 yet, which is my main concern.
I see now it is relatively easy to get the ReAction classes working - just copy them over basically. Yes now that Hyperion owns them I hope they will be in 3.2. So far I'm liking Amiga OS 3.1.4. It seems to be extremely stable and fast. Large HD support is great, HDToolbox obviously had a lot of work done on it... as is screenmode prefs "Test", looks great!