The much-anticipated PowerPoint Producer 2007 has finally entered public beta testing. This version of Producer will be compatible with new Microsoft technologies such as PowerPoint 2007, IE7, and Vista. Of course, it also offers good compatibility with Open XML. If you're not familiar with what Producer is, here's a quick explanation: Producer is a tool that allows you to easily insert audio and video into your PPT, edit them, and then enables your audience to view the presentation directly in their web browser!