Things to test manually:

1. Each sample compiles and run as expected.

2. Check that "add to home screen" works on iOS:

   - Check that "add to home screen" creates a new icon in Safari (Dart logo on
     white background with rounded corners). The suggested name should be "Try
     Dart!".

   - Check that the app launches as a full screen app which must be killed
     separately from Safari.

   - Check that the splash screen shows (Dart logo on white background).

   - Check that the initial view port displays the full page, but that it can
     be zoomed.

3. Check that "add to home screen" works on Chrome Mobile (Android):

   - Check the menu item "add to home screen" is enabled in Chrome.

   - Check that an icon (Dart logo with transparent background) is added to the
     Android home screen. The suggested name should be "Try Dart!".

   - Check that the app launches full screen and is separate from Chrome in the
     task viewer. For now, expect that the icon in task manager is Chrome and
     the name is just "web app".

4. Check that the site has a nice screen shot on Google+.

   - Validate using http://www.google.com/webmasters/tools/richsnippets

   - Try sharing on Google+. The screen shot should appear before you actually
     share, so you don't need to actually share.