csshX is a tool to use multiple SSH sessions Mac OS X Lion
csshX is a tool to allow simultaneous control of multiple SSH sessions. csshX will attempt to create an SSH session to each remote host in separate Terminal.app windows. A master window will also be created. All keyboard input in the master will be sent to all the slave windows.
Advanced features include enabling and disabling individual terminals, window layout and size controls, wild-card host-names, subnet scanning.