Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Winterboard - Give your iPhone or iPod Touch a graphical overhaul!
netcat - Netcat is a featured networking utility which reads and writes data across network connections...
Dreamboard - DreamBoard lets you take control over the homescreen of your jailbroken iPhone.
Ettercap - Ettercap is a suite for man in the middle attacks on LAN.
Springtomize - Tear down the walls