OH yea now that we are using PC hardware we can just have people dual boot windows or run a windows VM,
Microsoft used to sell (quite expensive as well) Virtual PC for Macs using a PowerPC CPU. The shift from PowerPC to intel CPUs does not have a drive from the angle to be able to run the few window applications that people still feel a need to, it's been possible for a long while. The problem with PowerPC is mainly that development stalled and e.g. getting a high performance low power using CPU was troublesome (no G5 for laptops hurt Apple) It does mean we're stuck with that intel architecture and the resulting mono-culture that's seriously dangerous.