It looks like Blackberry would emerge as a head to head competitor to iPhone. Is the business model of RIM and Apple/iPhone similar? ( other than business centric vs consumer centric ) I do not know how RIM makes money, just in equipment sales or they have end to end technology for data or they get a share of the monthly dues? Also, is Blackberry an email device which can also make voice calls? Does apple get a cut off the monthly dues one will pay to AT&T?