i read your KiwiConIII talk at exploit-db. I tried whatweb and wanted to recommend it to the bt admins. After soem searching i found this thread, and now i just want to give you some regards for your good work, and try to encourage the admins to include whatweb into backtrack.
so admins: mr. urbanadventurer build a very nice and handy tool to automatically fingerprint sites. that come in handy to determine vulnerable cms versions in your daily audit work! just give it a look.