Click on the top Android border to rotate it vertically.
NOTE that Flash will not work on the Android Phone, even though you probably see it working here.
You can preload a page or set portrait mode by passing using URL parameters, like this: http://android-emulator.org/?url=www.sfusion.com
Pages in portrait mode are scaled to 75% by using CSS3 transformations, which work best in Firefox 3.6+, Chromium 5+ and Opera 10.4+.
The reload button on the Android address bar also works.