I was just thinking that some aspects of Incident Response can be done while mobile. It would be interesting if I was on the beach and able to troubleshoot issues on a mobile phone. Five years ago I created a project for my interns to allow remote command-line management of systems through AIM, which you could do from a mobile phone. Although it wasn't a "secure solution", it was pretty nice.
Thank you iPhone and TouchTerm, now I can do it securely. The iPhone does support VPN connections and TouchTerm allows you to establish SSH connections to systems from the iPhone (for $FREE)!