App Inventor 2 is the new version of App Inventor now available at http://ai2.appinventor.mit.edu. It is fabulous– a real game changer in terms of app building and computer science education for beginners. Congratulations to the MIT team for this great achievement!
The tool is much easier to setup and usually requires no downloads on your computer. If you want to build apps and learn some programming, and you have an Android phone, you can literally get going within minutes.
Besides the better setup, the new system provides a much more elegant programming experience. The blocks editor loads immediately — its now in the browser, not a Java app!. And there are a number of new features that simplify the app building process. Once you use it you will NEVER go back. However, AI “Classic” (beta.appinventor.mit.edu), and the projects you’ve already built, will still be available for some months. For a description of the key changes in AI 2, see http://www.appinventor.org/appInventor2Changes.
Teachers– you should teach with AI2 this Spring. For my take on why, see http://appinventor.org/appInventor2. In terms of supporting materials, the App Inventor book has been partially translated into AI2. You can find some chapters in web form at http://appinventor.org/book2. Most of the book will be translated in web form by early January. I am also working on a new book which will be available in plenty of time for next Fall.