Wait, so even though the glass of the goggle screen is only an inch or so away from your eyes, your eyes dont focus continually on the glass?
Yes , this it seem counterintuitive, but from what I understand it is more similar to looking through binoculars,where you also do not focus on the glass because you cannot see the glass

, your eyes focus in the distance, it should be even more relaxing than the monitor screen.
The Oculus is not 2 screens in front of your eyes , there are optics(lenses) in between.
From the Oculus FAQ :
The Rift is causes very little eye strain, particularly compared to other standard displays or headmounts.
Normally, when you take a break from using a monitor or TV, the idea is to give your eyes a chance to focus and converge on a distance plane. This is a natural position of rest for your eyes.
With the Rift, your eyes are actually focused and converged in the distance at all times. It's a pretty neat optical feature, for sure.
PS: Also , in theory Oculus' 3D should also be much more comfortable than normal stereo glasses , because it project a separate image for each eye (so no flickering) , unlike normal stereo that obturates left/right eye while displaying right/left image (for me the flickering is more than obvious)
You can't see the keyboard so communicating and controlling the game interface ends up being a goggles on/goggles off process which would just drive me up the wall.
Hmm , this though seems like a legitimate concern. I'm not sure but I think Palmer said that its not so close to the eyes that you can't look straight down at your desk.
Related quote from Palmer: "The current Rift optics do not go past the nose"