I am not a developer, but I could find the 1500 bucks a little steep, esp. if it is for the "privilege" of developing for the new hardware. I mean, shouldn't there be an incentive to attract devs towards your new toy? 1500 per device is chump change for Google, they could actually sell it for a lot less. The more developers you can attract, the better it will sell when it comes out to the consumers.
What I learned about Google Glass from this story and the Google I/O demo of Google Glass: It's for recording and streaming video of people doing extreme sports.
Google X labs might have made a neat product so far, but they've failed in showing what it can do other than record video of skydivers and mountain bikers. Show us something useful. I thought these were supposed to offer "augmented reality."