Barnes & Noble chief Steve Riggio today said during a fiscal results call that the iPad shouldn't be a major concern for his company's health. The executive asserted that, while having a self-branded e-reader is "critical," Barnes & Noble isn't dependent on a single platform and offers its bookstore on the iPhone as well as the BlackBerry and most computers. While also true of Amazon's Kindle store, hardware is argued less important at Barnes & Noble.
