Mocha Telnet provides access to a Linux/UNIX Telnet Server. Using your iPhone or iPad , you can connect to a Telnet server and run applications in a VT220 Terminal window. Exactly as you would, if you were sitting at your system console, just on a smaller screen.
Requirements: Compatible with iPhone, iPad and iPod touch. Requires iPhone OS 4.3 or later. WiFi, Edge, or 3G network connection required.