The Data Science Toolkit R Library by Ryan Elmore allows developers to integrate the Data Science Toolkit API's functions into their R applications. This library is offered under the Simplified BSD License.
What's that guy at the coffee shop typing into his computer? These days you may actually be able to find out. If he's using Twitter or FourSquare, nearby messages can be called up using the APIs. The new Geosay mashup does exactly this, showing tweets and tips near your location--or any location you request.