This terminal emulator I have been using for a while. It is very similar to the standard Terminal Emulator that ships with Cyanogen's ROMs. Some of the changes I have noticed that it has a nice colours (like Linux) on the CLI. Useful things you can do with this app is connect to SSH/telnet servers, diagnose your network connection (using tools like netstat and ping). Basically use it to call Busybox commands with a Unix look and feel environment. I normally use this to debug my applications by calling logcat or bugreport. Then you can pipe it to a text file on your SD card like so: # su # logcat > /sdcard/logcat.txt Of course doing that requires root and you probably want root to make the most out of this application.