My understanding is that it is in fact Apple wanting their 30% (since kinle app already allows people to purchase books from the iPad through safari). I don't t

My understanding is that it is in fact Apple wanting their 30% (since kinle app already allows people to purchase books from the iPad through safari). I don't think it's a big deal as long as the additional cost is not spread to all kindle content purchasers. iPad users get the ease of use by being able to do in app purchase vs safari, it's only fair the pay the additional costs.