He hasn't been able to use it much yet, since the Explorer edition isn't quite ready for prescription glasses wearers.

ENGADGET

In the meantime, if you're one of the lucky few to have an Explorer edition of Google Glass you can install the package at the source link.

ENGADGET: MedRef for Glass uses facial recognition to identify patients, keeps health records

Google may not be happy, though, as it was very clear that the Explorer Edition coming to devs was not to be resold or even gifted, and we assume the same restrictions will apply to contest winners.

ENGADGET: Google Glass appears on eBay, you can't afford it (updated)

Google just hit our inbox with an email inviting folks who pre-ordered the Explorer Edition of Project Glass to two-day hackathons in San Francisco and New York, where they'll be the first group of developers -- not being paid by Page and Co.

ENGADGET: Google invites Glass pre-order holders to hackathons in New York, San Francisco

Licensing deals are sometimes a hit--as in the Caterpillar brand of Wolverine shoes (both are tough, reliable "tools") or the Eddie Bauer edition of the Ford Explorer (outdoor adventure).

FORBES: Ballpoint Perfume