I think they'll get there. This is still early, they're probably focusing on the core rendering right now.
> If we are in VR, then we don't have to limit our selves to laying out windows on a single primitive. Where are the virtual shelves? where is the quick change, what about hotspots to bring groups of windows back into near field.
From playing VR games, actually the best implementation of this I've seen is to put them on a "belt" of sorts. Like an oversized toolbelt (so they're away from your body) so you can simply look down and grab stuff.
Spheres do work well, though. It keeps all the text at the same distance from you, so the edges aren't out of focus. I suspect it also makes zooming easier since you can just move the camera closer. If you have an actual 3D space, moving the camera can get weird, and the camera being weird in VR is really disorienting.
> (it looks like they don't have room tracking, so feels like they have limited 6dof source: coffee video, I'd expect much more sideways translation if they had proper headset tracking)
Not having room tracking doesn't prevent movement. You'd just move with wasd like before. Not having room tracking means you can move your chair 6 inches without all your windows getting shifted. Likewise, you can stand up in your standing desk without re-adjusting all the windows.
Plus I'm sure it'll help keep the cost down.