Kabouter is Dutch for gnome and also a tool to connect to a range of IP addresses via ssh. It uses gnome-terminal to manage the sessions which, for me, seems more natural than some of the other 3rd party SSH applications available.
Usage is simple:
bcurtis@ronin:~$ kabouter ampli 172.19.18.65 172.19.18.96
This creates a gnome-terminal session with 32 tabs connecting to the range of SSH enabled machines. This works very well when using it with SSH Multiplexing which then gives you a way to automate remote commands through SSH without needing secure key authentication and without having to authenticate each time you want to run a command.