[polymathist]

I've tried the Oculus DK1 but not the DK2. They are similar in terms of resolution and tracking accuracy. There are two main differences. The DiVE is a cube-shaped room with six projected walls. So you can fit multiple people into the simulation at once (only one person gets head tracking and the proper perspective). The DiVE also had a "wand" which you could use to interact with your environment. I would bet there are similar peripherals for use with an Oculus Rift, but I haven't tried them.