If you compare to other launches where they just lobbed things out there at launch this seems very deliberate, planned and cognizant of the challenges Glass faces in getting off the ground. It will be very interesting to see how it works out.
A world with even just a fraction of a percent of people actively wearing the devices but with all that real-world data streaming back to The Goog in real-time would make Batman's little cell-phone network scanning thing in The Dark Knight look absolutely quaint in comparison.
Sounds like an opportunity for someone to solve this problem.
I could see how that might be much more difficult for startups based outside of the United States but since they are currently looking to invest domestically this is a pretty good method of filtering.
There is this belief that missed opportunities are the end of the world. They are far from it.