Considering my grandma has never even owned a computer, I was pretty impressed with how quickly she took to it. And throughout their visit, it wasn't unusual to walk in on sights like this before these two went to bed.
Of course, since my grandma doesn't have internet or a need for email or anything like that, most those features are all lost on her. So in the end, she pretty much owns one expensive Farkle machine (she also really likes "those Angry Birds").
It also inspired my next entrepreneurial endeavor:
Emily's iPad Instruction for the Elderly