I want to know the answer to the following question:
What other devices can sideload apps?
All the background I'm provided with is that "A method to sideload apps from outside Windows Store is available to devices running Windows 8 Enterprise and joined to a domain; Windows 8 Pro and Windows RT devices that are not part of a domain can also sideload apps, but only after special product keys are obtained through volume licensing.". Is that enough to answer the question?
Answer: yes