The thing that worries me about this is that I don't see anything mentioned about different sizes. Hats aren't all one size. Glasses aren't all one size. I have an unfortunately large skull and "one size fits all" hats never fit me.
Does this mean that there won't be an Oculus for me?
For the devkit at least, there is an adjustment band that goes from approximately waist-sized down to babydoll-head size, so you should be covered. The only adjustment for eye separation was in software, so YMMV for that side.
In the DK2, my glasses don't fit. Which completely ruined the experience for me. Additionally, the output appeared calibrated to the lenses to avoid color shifting, but to me that ended up causing little halos of colors at the edges of objects. Hard to say for sure why it happened, but because it was so "smart", I found the 3D much less realistic than Playstation VR, which has a simpler, more permissive headset that worked better with my glasses on, with no color shifting that I could notice at the time. It was lower quality, but better, because of it.
I look forward to seeing reviews on the Oculus Rift from those with glasses ;-)
I have a fairly big head as well (I can't really wear an adjustable baseball cap for instance, unless I cut my hair short), but the DK2 worked for me, with a little room to spare. It also worked for my 4 and 7 year old kids.
Does this mean that there won't be an Oculus for me?