You erroneously think that the iPhone and RX-51 occupy the same market niche. They do not. The way things look, RX-51 is the first test device that will replace current crop of high-end Symbian phones and compete with high-end HTCs in terms of productivity. To confirm that, you only need to compare RX-51 with the current HTC offerings. You get extensibility, the full range of hardware features, and interoperability with the outer world. You generally get decent looks, but not perfect ones, as your emphasis is on features, not on shininess. iPhone, on the other hand, is not a productivity mobile device. It is a fashion item. Nokia also makes some fashion items, under the "Vertu" brand. Some people absolutely love shiny fashion objects, but they are not the same people as the ones buying shovels.
No. Should they?