iSuppli estimates that 3G radio adds about $25 to the cost of iPad (http://www.isuppli.com/teardowns-manufacturing-and-pricing/news/pages/mid-rangeipadtogenerat

iSuppli estimates that 3G radio adds about $25 to the cost of iPad (http://www.isuppli.com/teardowns-manufacturing-and-pricing/news/pages/mid-rangeipadtogeneratemaximumprofitsforapple,isuppliestimates.aspx http://www.isuppli.com/teardowns-manufacturing-and-pricing/n...) so at $50, I'd imagine that Amazon's probably recouping the cost of baseband hardware + development time and effort, and not much else. It's amazing to think that they can throw in the free 3G access on top on the hardware for just $50 extra. I guess they're counting on low browser and web usage due to the e-ink screen...