Microsoft have launched a new mobile site, made for mobile browsers which lets you experience the Windows Phone 7 experience right on your device without having to download anything. It leads you through some of the main parts of the OS. Even the UI transitions and the live tiles are all implemented. With the release of the Nokia Lumia 800, Nokia might revive itself and also bring Windows Phone 7 along with it. The experience might also help people who want to make the transition to Windows Phone 7, a little easier.
Just hit the link in your mobile browser to try it yourself - aka.ms/wpdemo