I saw the IBM thing and wanted it too

I've been working on a sniffer for my linux IPAQ and it starts to work.
It'll only give stdout, since I wanted to make a GTK frontend for it that can read gps info and lauch a sniffer on a particular network.
You can find 'sniff' on www.defect.org/ipaq/. You can download the .tgz which has a compiled x86 and ARM binary.