Niall Kennedy has documented an API for Google Reader, beating Google to a public release of how developers can build their own feed-reading applications atop Google's engine. An update to Niall's original post reveals that the product manager of Google Reader confirmed the accuracy of Niall's work, and asserted that Google built the API first, then contstructed Google Reader as just one example of what could be done. The implication here is that Google might well develop new feed-reading applications--something to look forward to. Further, Google plans to release an official API before long, opening the doors to third-party applications.