Kindle dev kit announced, 'active content' coming to Kindle Store later this year

Amazon's just announced the Kindle Development Kit, or KDK for short, which will be rolled out starting next month in limited beta and then to wait-listed folks "as space becomes available." The apps, here called "active content," will eventually be available for download via the Kindle Store later this year. EA Mobile is already signed up to participant, and Handmark has committed to creating "an active Zagat guide" We'll be interested to see what comes out of this, and it probably goes without saying, but something tells us Amazon isn't gonna let web browsers or music streamers through the front gates and over its free 3G service.