http://petewarden.github.com/iPhoneTracker/
This link is now broken.
about:
This open-source application maps the information that your iPhone is recording about your movements. It doesn't record anything itself, it only displays files that are already hidden on your computer.
The City of San Francisco too, decided to publish several Datasets. DataSF is a central clearinghouse for datasets published by the City & County of San Francisco. The site allows to find datasets in several ways: general search, tags/keywords, categories, and rating. The goal is to improve access to city data through open machine-readable formats.
Anyway, there does not seem to be any SPARQL endpoint or any other semantic expression of the exposed datasets... Maybe in a future iteration?
This is a site for large data sets and the people who love them: the scrapers and crawlers who collect them, the academics and geeks who process them, the designers and artists who visualize them. It's a place where they can exchange tips and tricks, develop and share tools together, and begin to integrate their particular projects.