The can't as they have a Non-Disclosure Agreement (NDA).
But, if you listened to the conference calls for either 4Q 2012 or 1Q 2013, they as much told you that AND MORE. They said they were working with several large companies on head mounted displays.
The other companies are rumored to be Microsoft (already a customer) and Sony (also listed on the HIMX site as a customer). We just need the products announced by Microsoft (new xBox) and Sony (new PlayStation).
Then, someone needs to be willing to tear down the Google Glasses for component manufacturers.