Well if it was from Apple, it would be the Ipaddie. 😛
If there is more than meets the eye, great, I could actually see some use if the device not only digitally captured the writing but stored a copy on itself as well. A cord is required too, my wife is a the killer of laptop USB ports. ( I tell her each time she breaks a USB, "I may not be able to get replacement parts", we've always been lucky that I'm handy.