I have a website which sells a product to the user (downloadable). I am creating an iPhone app and want to be able to sell some of the products using the 3.0\'s in-app purchase.
Nekin,
I think you have to use the type as consumable (in app purchase) product as each time the product has to be purchased. Once you purchase a book, then you can mark it as purchased in your local app database and that way the user need not buy the same book as you can check it in the local app database before connecting to the in app purchase payment request and this way the inapp purchase products can be dynamic and can use as many books but the list of books should be from your server. You can keep updating the server data with more number of books.
Thanks, Vijay