I agree on the whole 'thin' phone deal. Hell, I would love to see some sort of form factor standard and case market, the way AT(and then ATX) clones ballooned into a market standard opening up hardware modifications to the masses. A handful of manufacturers were trying to make a 'modular' design, and that is just ass backwards to what would actually work.
I bet given true competition with open hardware standards, we would notice more people building phones(or getting them custom built) and choosing to go after designs that none of the big companies bother with. At the end of the day, it's just an ARM based board, network card with antenna system, display, battery and power regulation. All of which can be designed to fit into many cases which can be 3d printed or manufacturers by all of the industrialized world for cheap.