I am working on a new accessory for the iPhone/iPod Touch. It is an Ethernet adapter that plugs into the dock connector, along with software that allows you to do network analysis from your phone.
This is a bit of a departure for me from pure software, so I'm still learning as I go. If this is of interest to you, I've set up a short survey on surveymonkey to collect information about features, pricing, etc. I would really appreciate any feedback. http://bit.ly/1radd