Ann Dunkin

Apple hopes its foray into digital textbooks for the iPad will impress educators and corner a huge, lucrative K-12 book market. But the high costs of the plan and the challenges of mobile technology could ensure that hardback books remain a classroom mainstay. Will Apple create an all-iPad classroom and realize Steve Jobs' vision to transform the multibillion-dollar textbook industry? In January, the Cupertino company announced iBook 2, a digital textbook service in partnership with three big publishers that dominate the K-12 market. The electronic books will sell for $14.99.It sounds like an irresistible deal for the dazzling, interactive