The iPhone will not save Sprint, Sprint has to save Sprint. And the first thing they need to do is get rid of that burden Nextel. Nextel is what caused Sprint to hurt so much.
That and investing in dead-end technologies such as Wi-Max. It looks like they may have learned their lesson by doing quite a few good things such as:
*The interoperability between CDMA and iDEN Networks for their PTT service
*Obtaining the iPhone 4 and 4S.
*Having a nice Android selection.
*Phasing out Wi-Max by 2012
*Having a nice LTE Plan
*Retaining unlimited data plans to have an edge over VZW & AT&T
The following things will kill Sprint if they're not careful:
*Having horrible customer service
*Hanging onto that burden called Nextel (at least the iDEN Network)
*Not planning for the future, or hanging onto Wi-Max