Wearable systems like this can be in the shops in just a year. The 3M projector used in this demo was made available only a year ago, but several phone makers h

Wearable systems like this can be in the shops in just a year. The 3M projector used in this demo was made available only a year ago, but several phone makers have already started making projector phones. The next step is simply to add a mirror to the projector, attach a string so it can hang around the neck and start write some software for it. It probably won't be as hugely successful as the iPhone, but for many users it will be very useful.