Run the Linux command line on your iPad: 
Did you know that you can run a Linux command line on your iOS device? You might be asking, “why would I want to use text-based applications on my tiny iPhone?” OK, fair enough. That is a pretty reasonable question. But if you’re reading Opensource.com, you probably know the answer: Linux users want to be able to use any device, and they also want to use their own customizations.
And most of all, they want a challenge.
read more: Opensource.com leeto
Supporting Open Source.
Have you tried: Diving with Sharks?