Mad Mac Maniac
macrumors 601
Pesonally, I believe that "beta Siri" was created soley to create data points by developing knowledge of languages, accents, grammar dictation and usage. That's why it has the "beta" indicator. Apple couldn't use just devs to test the beta because they needed as many data points as possible.
I think a year is probably enough time to create the necessary data, so the beta will probably be removed. I don't know how much of this will happen this year or next, but I'm guessing by the end of 2013 Siri will be released on iPhone, iPad, Apple TV, and Mac (probably in that order) and will also include 3rd party support.
Another thought to add to this. I don't know all the technical compenents/limitations to siri.
Maybe in the near future Siri won't be required to use the server to function. It would make sense if that were being done as part of the "beta" so that Apple could gather as much info as possible. I think Apple would still like to have at least some of the siri commands to be sent through the server just to continue to fine tune things, and update the database as new slang, and products come out and evolve etc. But if you can't connect to the server at that time then Siri would duitifully just process the command all on her own. That would solve a lot of complaints.