When you're ready to produce your movie you have 2 choices:
- Publish to an internet host. The beta version includes a link to publish your videos to an MSN Soapbox account, which I first used to test the app... if you're heading to a host not yet linked to Windows Live Movie Maker or having a downloadable plug-in, use the other option to save the movie to your hard drive and use the uploading interface provided by the host.
- Output the movie to your hard drive.... a DVD quality file.
In addition to Soapbox, the 'Add a plug-in' option (see image) takes you to a Microsoft web page with plug-ins for others: as of this article, they are YouTube, SmugMug, Flickr, Picasa Web Publisher and Drupal Publisher. Others will be available as they are developed by Microsoft or third parties.
Under-the-hood features support adding other hosts, but you'll need a geek to do it.
In addition to uploading your movie with the first option, Windows Live Movie Maker keeps a copy of it on your hard drive in the same folder as the project file. I checked to see what quality the file was... 430x320 pixels, 29.97 fps, 487 kbps total bitrate including an audio bitrate of 96 kbps. So far there are no options to select other quality settings. If you want a higher quality movie to upload to your host service, save it to your hard drive and take steps to upload it from there.