With R3, eBook publishers will be able to create different purchasing platforms, and will be able to charge readers per page, per time allocation, per usage or per download. For example, publisher X might charge it’s users a penny a page (or more), while publisher Y might charge a penny a minute (or more). On the other hand publisher P might want to charge the reader per download (PC, Kindle, etc.) or they might decide they like the current structure and not change a thing.