As we announced on the App Inventor Announcement Forum, Google will end support for App Inventor on December 31, 2011, after which data in appinventorbeta.com will not be accessible and will be deleted from Google servers. You can preserve your App Inventor projects by simply clicking on the Download All Projects button on your My Projects page. This will download to your computer a zipped archive of all your projects. We recommend you retrieve your projects well before December 31st.
By the end of 2011 Google will also be making the complete App Inventor source code publicly available under an open source license, so that anyone can study the code and modify it as they desire. In order to ensure the future success of App Inventor, Google has funded the establishment of a Center for Mobile Learning at the MIT Media Lab.
E che è AppInventor?