One of my 1000 unfinished projects was a e-reader app for android that generates coloring book pages, or illustrations for young kids who are in that weird age group where there are no more pictures in their books, but they still enjoy illustrations. I have a gifted niece who is way ahead for her age at reading but still enjoys pictures/coloring so I planned on making it for year. Don't know if I'll have the chance to finish, but I'm sure Kindle will integrate this into their new color kindles (and probably every other e-reader) at some point.