This new ff labs project is really pretty cool, it integrates alot more command line like web integration into a keyboard invokable interface like quicksilver. Ars Technica has a good write up on it.
http://arstechnica.com/news.ars/post/20080827-ubiquity-prototype-lets-users-take-command-of-firefox.html http://arstechnica.com/news.ars/post/20080827-ubiquity-prototype-lets-users-take-command-of-firefox.html
