For this year's Boston Marathon, Manser opted to run with both a physical companion and a remote guide who saw his perspective through his Google Glass. The agent is an employee of startup Aira, whose software runs on the Glass and is designed for the visually impaired.
Manser actually didn't start with the Aira agent -- the system wasn't working. He ran with his physical guide for the first few miles before pulling over and getting Glass, his Bluetooth headset, AT&T wireless hotspot and iPhone working again.
From her office in Ohio, Aira agent Jessica Jakeway is able to see what Manser sees through Glass' forward-facing camera. She also has Google Maps up for local information like landmarks and upcoming turns.
Google Glass was the hot new thing. Then it wasn't, as people soured on the idea of smart glasses that constantly shot video. But Glass -- and smart glasses in general -- are making a comeback thanks to new and useful applications that actually change people's lives.