Can I get siri on my ipod touch

Nope.

Best as I understand it. Siri is beta and Apple have chosen to only make it available on the new iPhone 4S. Maybe as time and updates come along they'll expand Siri to more devices. I'd sure like to have it on my iOS devices.

Ifmsirimis iPhone only the it might encourage people to get iPhones. Also, there may be parts omit that will only work on 3G networks - which the touch does not have.

Honestly I'd expect it to go to the 3G iPad before a touch or wifi only ipad