Finally thinking of taking the plunge to switch to At&t and iphone but a few questions if you guys know: 1) Is the current iPhone the same as the original interms of durability (ie. same great screen/scratch resistance) since the price drop? 2) Is the screen the same super high-quality in terms of viewing angle/contrast? 3) Can I view .doc and .pdf files in Safari (for example, view course syllabi, lab reports, ect.?) Sorry if these have been asked before, I searched but got some conflicting info, esp. since so many people say the screen is inferior now, so I'm a bit confused!!