Now that Google has offered a preview of Glass' SDK and opened the Mirror API to all developers, it has a strong incentive to get its eyewear in the hands of app writers. Accordingly, the crew in Mountain View is now inviting developers to buy Glass' Explorer Edition; you'll find one such invitation pictured above. We've asked Google about the scale of the expanded Explorer program, and we'll let you know if it can provide more details. Whether or not it can, the widened reach is good news for Glassware producers eager to test their code on real devices.

[Thanks, Josh]