The iPhone, while not an open source platform, once jailbroken, can behave as one, and thus become a useful *nix environment. The current methods of accessing this environment remotely is through an ssh connection via the internet or LAN. This poses unnecessary overhead in infrastructure thus increasing power consumption and point of failures. For mobile users who are concerned about battery life, reliability (ad-hoc networks on the iphone are unreliable), and simplicity, would much rather prefer a connection to these resources via USB. iTunnel allows this to occur.
According to the website it is replaced by usbmuxd which is available already on portage. http://marcansoft.com/blog/iphonelinux/usbmuxd/ Works flawlessly. After installing it you have to replug your apple device for the udev rules to take effect. Should start the usdmuxd daemon. You can then use iproxy <local_port> <device_port> to create a tunnel for any service you want. So I guess this bug can be closed if the OP does not mind =)