If Siri is software, why is it not available on all iPhones? I remember when the 3GS came out and we got video but not on older phones yet there where hacks available for older phones that allowed video. Is this the same scenario where Apple is trying to force hardware upgrades in order to benefit from new software when it really isn't necessary?
Regardless of the reason, it is NOT available except for the iPhone 4S. If you want Siri badly enough, get a 4S. Complaining doesn't change anything, and none of us here really want to listen to it anyway.