When Adam Greenfield chats about Everyware, Bruce Sterling listens. Sterling sat in the front row with (we're assuming) his daughter. They both took notes on a big notebook opened across their laps.

Everyware is about ubi-comp (ubiquitous computing) meaning many devices, many users, many systems. If you have a generally creeped out reaction to this "vision of the future," here are four places where it's already out there:

In Hong Kong they use an RFID technology called Octopus that's a transit pass, a charge card, an access key, etc. In 2004, 95% of the population between 16 and 65 used it.

New Songdo is a retirement community being built in South Korea that uses reactive architecture to monitor the well-being of its residents. Someone falls, the floors send a nurse.

Look at your Mastercard. If you've got a chip with an antenna on it, you're already set up for their Paypass technology, also known as tap and go.

Remember hypercolor t-shirts? Sensacell is that for interiors.

In the middle of his presentation, Adam Greenfield's phone rang. "Can't get more ubiquitous than that," he said.

He also talked about how people who design these systems have a responsibility to be respectful of their users. Which hopefully makes it a little less scary for the rest of us.