One click lets you test and assess Windows 7 from your browser.
Supporting videos provide a step-by-step walk through of the features & deeper product information can be found in the Learn More section
The site also offers us a chance to get first-hand experience in Windows 7.
It is a free tool for you to use whenever you want and requires no special software installation (besides a single ActiveX). All you need is a Windows Live ID, and a visit to the Windows 7 Test Drive site.
The only conditions are that it must be run on Internet Explorer 6.0 or higher and you must have XP, vista, or Windows7 as the platform.
Let me know what you think in the comments below!