Meredith Corporation is bringing three of its most popular magazines -- Parents, Fitness and the venerable Better Homes and Gardens -- to the iPad, complete with additional content and interactivity. Currently available as single-issue sales, the digital editions cost the same as newsstand editions ($3 for Parents or Fitness, $4 for BH&G). The company has hinted that it may offer subscriptions on the iPad via a third party such as Zinio rather than use Apple's subscription model.