My friendly local hacker space has a Laser Cutter that I’ve been having fun with. Someone hooked up an arduino to a lightswitch that sends a tweet to indicate if the space is open or not. I built a house for it. More info here
Excellent summation of the Maker Movement and how it will continue to lower the barrier of entry for individuals to design and manufacture their own products. This is already happening with service Design repositories like Thingverse and 3D printing service bureaus like Ponoko. There are many more examples. 3D printing is where desktop publishing was in 1988 (Mac+Laserwriter). And is evolving more rapidly. And there is more to it than just 3D printing. Individuals can affordably order custom products of all sorts directly from Chinese factories in small batches on alibaba.com
The range of opportunity is mind-boggling.