It looks so slick and sexy in those pics. I admit, the shape baffles me a little and I don't think I'll fully understand it until I see people wearing it. I'm really excited about this, but part of that is my Rift excitement talking. I'm making assumptions about Morpheus based on Rift, such as only being able to see screen. But OP says prototype models have a 90 degree field of view, while google tells me humans have a field of view of nearly 180 degrees. If I'm understanding this correctly, that is a lot less exciting and will hopefully be changed.
I don't want to spin around while I play, but I would like to wear a headset while sitting mostly motionless, and just letting the game occupy my entire view, in 3D. I also want an ability to turn the motion tracking off, so I can lay in bed at night and play games or watch a movie without disturbing my wife.