This looks super cool. There's a toy being sold that has a head mounted video display as a part of it. The headset can be bought as a replacement part for twenty dollars. It uses standard signals (NTSC or PAL) and can, with very little work, be hacked into a new role in a custom project.
This would make a neat little reality augmentation display or virtual reality display. Plus, there's nothing to stop a developer from buying two and making a stereoscopic display.
Obviously no commercial product would be tolerated with a black and white screen anymore, but this is a boon for hobby work and prototypes.
(via Hack-a-Day)