Usability
"The usability of flash websites is not really good." Once that was true, but no longer. The website wou see here can be navigated by using the browser prev-/back buttons, you can deeplink to a site and the scrollwheel of the mouse behaves exactly as it should, even on the mac.
Try it: navigate this website and watch the address bar. Then use the prev-/back buttons of your browser.
Also test a deeplink to a sub page (will be openend in a new window):
http://www.turbohomepage.ch/en/features/gallery-videos/
...or a link within the website: /en/features/gallery-videos/