Everybody loves introducing operating systems to where they don’t belong. Case in point? The countless Android iPhones, Android TouchPad and even the Android HTC HD2. Well, now we’ve got one more device to add to the list: an iPad running Linux. Some developers have managed to get the open source operating system running on Apple’s A4-equippsde iOS devices, which means the iPad, iPhone 4, and the 4th generation iPod Touch.