I bet you are asking "who is Recon?" and "why is Recon a competitor for Google Glass?" It's the company that makes the displays inside Oakley and Smith Micro's latest goggles.
But now Recon is showing off its next product, for this winter, wearable sports devices. AKA "Jet." http://jet.reconinstruments.com/
So, why should Recon be taken seriously?
Well, first, Google Glass won't be out this year. But even taking that out of the equation Recon is going after two very fanatical audiences: snow sports and cyclists (both motor and pedal action). The athletes in both areas spend a lot keeping any edge possible. Plus they are one of the places "cool" culture comes from. What they choose is very important and could doom other competitors.
I used Recon's tech on the slopes back in February. They have the real deal and are adept at making deals to get retail distribution (Apple, Oakley, and Smith).
There will be more competition to come for Glass, but this definitely keeps the attention on one of the success vectors: will Glass be "cool enough?"
(I think so).