There are a number of publishing platforms for magazines that use these online (Ceros, Zinio etc). As for touch related, I think they both have iOS / mobile we

There are a number of publishing platforms for magazines that use these online (Ceros, Zinio etc). As for touch related, I think they both have iOS / mobile web apps as do others. They have all been around since before iBooks. The first time I saw a finger following page turn on iOS was pre iPad via Pixelmags. I am not sure when it make it to market though, but I'm sure it was before the iPad launched.