Apple’s iPad remains the most satisfying tablet for US users, new J.D. Power consumer research suggests, though Amazon’s Kindle Fire range is close behind the Cupertino slates. The iPad scored 836 out of a possible 1,000 points in J.D. Power’s 2013 US Tablet Satisfaction Study, with owners questioned on the five categories of performance, ease of use, styling & design, features, and cost. The survey also found that more than half of those with a tablet share their slate with at least one other person.