That would certainly be my guess--that the APU will show up as a regular GPU to the system. Historically, as new technologies have been introduced to the PC platform, it very rarely took the form of an abrupt change if it was to be successful. Some things can't be done in that way but are major value adders, such as sound cards. Either you've got sound or you don't. Other technologies like 64-bit, SATA, and such are packed full of compatibility modes and such. Looking at that history, it won't surprise me if the APU shows up as a GPU and the term APU just becomes AMD marketingese for "GPU on CPU".