Yeah, ground source heat pumps are pretty awesome and are being installed with many new buildings and renovations around here.

But that's also AC, right? Just powered by different (better) tech.

I definitely agree that ground source heat pumps are better but they are also very expensive and basically only worth it if you replace a house's entire heating with it. Using some crappy mobile AC unit is an acceptable interim solution just to allow me to sleep at reasonable temperatures for the next few summers.