I looks like iPad has been Jail broken. This will give you the ability to run unsigned apps that are not authorized by Apple. Some of these are created by frustrated developers that got their apps rejected by Apple's approval process. Once you download Jailbreak app process is very simple, connect your iPad via USB and just click 1 button. This will install "Cydia" which is has a home-brew repository of apps. I have yet to try this but lots of people are claiming success.
http://www.engadget.com/2010/05/06/ipad-spirit-jailbreak-camera-connection-kit-external-hdd-sup/