After silently listing prices in its FAQ for a few months, Google has announced plans to charge for high usage of its Google Maps API. The company is making clear policies that have been present for some time. Google Maps went enterprise in 2006 when its Premier Maps was released. Many of the largest sites using Google Maps are already paying. While some may worry about Google charging for what has been free to most developers for six years, most Google Maps sites won't be charged and those that go over will be able to pay for overages in small increments.
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.
Soon you will be able to query Google's vast database of local businesses. Today the company announced Nearby Places, a Google Maps widget and a web service, with its eye on providing data to users on the go.