It’s an alpha release and the zero label indicates things that currently do not work in this build, such as accelerated video (no Netflix or HD YouTube videos for you) and the camera. Also, there is no support for this build.
For the first time, however, the developers are opening up the source code with hopes that others will contribute to improving the software and fixing bugs.
Follow Melanie Pinola (@melaniepinola) and Today@PCWorld on Twitter