Have you tried to press CTRL+ALT+TAB on Vista?
The Task Switcher appears but does not disappear when I release the buttons. It can be used as an application list and now I can easily use the mouse to hover over the icons, read the titles, select an application. It’s very convenient.
I think this feature is much more useful than the over-advertised Vista Expose (WIN+TAB) feature. Have you asked yourself how often do you use that visual effect?