Is Google Glass marketed as a developer kit, or even as a prototype or "first run" device? All the FEM I've seen is very polished (leading me to believe the company wants me to think the product is polished) and seems to be catering to a mainstream audience.

Compare this to the Oculus Rift, which explicitly sells a "development kit" and even requires checking a box that says "I understand this hardware is intended for developers and it is not a consumer product." And, as an aside, the Oculus Rift development kit is a much more polished and functional product than the current generation of Google Glass.