I'm an ebook designer preparing a print children's story series aimed at 6-9 years olds for ebooks. I don't have any grandchildren or contact with children that age, and have some doubts as to how many children that age could manage a Sony or Kindle.
How many of us have children who use ebook readers?
You might find this article interesting:
http://www.guardian.co.uk/technology...rs-a-for-apple