[TaylorAlexander]

Ah, yeah that makes sense. You would definitely be limited in input while mobile, but at least it would be possible to bring your workspace with you. The good news is, VR has already spawned an incredible amount of research in more natural human computer interaction, so hopefully some of these input problems will be better solved. Most of the input problems being tackled over the last few years have to do with touch screens, which can never be as useful as purpose-built interaction hardware. Keyboards aren't as useful when you can't see them, and VR no longer requires being at a desk, so with any luck we will see real headway in high quality new text input and interaction devices soon.