Let me give you some perspective. I'm not "good", interviews are incredibly painful to me. I work at a big-corp right now doing perceptual computing which I'm very happy with. It's not Google in terms of public perception, but it's not extremely bad either. I tried job hunting a few months ago, interviewed at the big ones. The interviews went mostly well actually, but I didn't get a single offer. Basically, given my specialty, I have to be extremely good to get an offer. I can't apply to any job that has to do with the web or mobile, because the stuff I'm building in my spare time is not enough experience.

Basically, the more specialized you are, the more brittle your situation is. I also happen to be an immigrant, which together with the specialization means that for any given city, there might be 2-3 employers I can apply at tops. My plan going forward is to basically abandon my specialty in favor of a more common/in demand skill set.