Here is my position paper, “Privacy of Geolocation Implementations” (PDF ~500K), that I prepared for the W3C Workshop on Privacy for Advanced Web APIs.
UPDATE: the presentation slides are now available.
It’s a little bit drafty, so any feedback or comments welcomed. I will republish as a HTML file soon.
Investigating privacy in depth has been one of the most interesting things I’ve done in a long time… though it has left me a little bit creeped out. Hopefully I’ll get around to writing a bit more about what I read, what I’ve learned, and what practical changes I’ve made.