So Not only does the 4S Have SIRI(Best platform), and the 4 has it(After Jailbreaking), BUT Now iPad 1 Has Siri(again After Jailbreaking), Yes iPd 1, Not 2!! Hit the Jump on details.
WZA on Google+
Here’s the problem, Because Apple has not Officially done this, The Apple Servers are not at this time communicating with Siri with non-4S iOS Devices, but give it some time and Apple will probably catch up, they just really want people to go buy that 4S, so when that sells out, you might be good -_-
But here is an example of SIRI in the settings on iPad 1:
