If you compare the use-cases of Glass and Android Wear, the camera is essentially the only thing that differentiates Glass. Both are going for weather checking, quick message sending, notifications, etc.

I'm a bit worried that Google might decide not to release Glass unless new uses emerge. It's a shame, because despite the overlap in use-cases, it feels like they might be onto something that just needs a bit more time to bake.

Morelike, they're showing what it can do today. With the API and more developers getting their hands on it? There's a lot more that can be done.