The things that the beta testers are testing are indeed normal programs. Because most of the API is still the same between 3.9 and 4, testing of the locales and the stability of the programs can be done on 68K.
A recompile will then make them PPC native.
It is indeed time to move on. See my signature; allready did.
I will keep my old Amiga though with it's 3.9 install. With any luck, I might even run OS 4 next to it on the PPC. But that all depends on how many people indicate to Hyperion they want to buy it for the BlizzardPPC.