I've just noticed that my work intranet is NOT prompting me for username and login when I goto the site when logged in via VPN on my touch. If I'm on the wifi at work (internal LAN), it prompts me. If I'm on the net (public/home) it wraps to SSL first then prompts me. If I'm on the net (home) but then connected to work VPN (VPN DMZ) safari goes straight into the work intranet! Not too shabby!