Developers have long requested direct access to driving directions data from Google. Now they've got it, Google announced today at its I/O conference. The feature comes after MapQuest who became the first major player to offer its directions as a web service for free.
PubSubHubbub. Say that three times fast. If you're not familiar with PubSubHubbub, it's an extension of the RSS and Atom protocol that allows the feed to push content out when it's updated. That's just the sort of technology we should see from check-in APIs like Foursquare and Gowalla.