Ed Gallagher, the blind man who "sees" with the assistance of guides via the Internet and Skype, really wowed them at the TODAY show.

Producer Josh Weiner retells Gallagher's story online.

He notes that Gallagher's system is a "seemingly simple, yet brilliantly clever remote guidance system. Ed mounts a web-camera to a strap around his forehead, and the camera wirelessly transmits the live video over the Internet using free software called Skype. Ed's friends take turns acting as his guide. Both wear microphones and earpieces, and talk back and forth as the guide tells Ed what he's 'seeing.' He's testing the barriers, and regularly uses it to sail, but also tries shopping, cross country skiing and even biking in Golden Gate Park."

A behind-the-scenes view at TODAY show of Jenna Wolfe testing Gallagher's system: