I don't know why you would think that. CUSA's machines will certainly be able to run 68k code. They will do it the same way that any of the PPC Amiga solutions would run it, via emulation. PPC processors do not run 68k code natively any more than an x86. CUSA has stated that they have the rights to distribute the original Kickstarts and Workbenches, and that they will be integrating UAE into their distribution. This means that all of your existing 68k applications should work just as well on a CUSA system as on an OS4 or MorphOS system.
Running 68k apps in OS4, MorphOS or AROS (when it gets that far), while emulating the CPU, runs the apps with native APIs, and that's a huge difference. If I want to run 68k software on another system it needs to be run in an emulated system, that means its own OS install, desktop etc. in a window, potentially with different menu layouts, shortcuts and limitations like lack of drag n drop and ARexx between native apps and the 68k apps in the emulated system. There are no such limitations when running 68k software on OS4 etc. Most people couldn't even tell the difference between a 68k and PPC app running under OS4/MorphOS, and that's a huge difference from the UAE scenario of running 68k software on foreign systems.
