except the voice recognition part doesn't work. other than that! :)<p>edit: looks like it just won't communicate with apple's server? (Which I think is the main functionality) it's hard to tell since video doesn't show any voice commands working.
you have to wonder if the beta tag has been applied purely because of scaling the servers, artificially holding back to the 4S rather than iphone 4 and ipad 2 probably makes capacity planning a lot easier!
The 4S is was entirely a software update from a features perspective. The article definitely lends more credence to this argument, because Apple said that the Siri was a 4S only feature. The biggest announcement that Apple made, in my mind, is the fact that the iPhone 3 is now free with contract.