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.
Springtomize - Tear down the walls
SmartSniff - SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers.
Five Icon Dock - Tweaks the dock of your jailbroken iPhone so that it can fit five icons instead of four.
netcat - Netcat is a featured networking utility which reads and writes data across network connections...
Six Icon Dock - This tweak allows you to have 6 icons in the dock of your jailbroken iPhone.