Buy an android phone instead it makes no sense to offer it even if it's possible. The iPhone from ground up is designed by apple to use with apple os. If i wanted Blackberry features I would buy a blackberry if i owned a android phone and wanted. iTunes and all the neat stuff that iPhone offers I would buy an iPhone it's that simple.
Well maybe he wants both operating systems without having to shell out more money for a contract and a droid phone.
Maybe he just wants to because he can? ya know, like putting mac osx onto a pc? it shows capability of the phone as well.
For example :
1:"oh hey i just got an android phone, kicks your phone to the dust man"
2:"oh yeah? *reboots phone into android os* now mine can do everything yours can and more. bet your droid CANT do that. droid can my ass."
3:"...where can i get the iphone 4? i want the one with the more gee bees and the wifis"