It’s akin to when the first iPad was released.
There’s been a lot of speculation around why Apple decided to do this.
Some people are suggesting that the dual-core performance of the 4S was needed so you can support Siri.
I absolutely agree with this theory.
Apple announced that they sold over 4 million iPhone 4S during the first weekend of sales.
That’s a lot.
That’s 5x the load on the already struggling Siri servers and web connection.
By limiting Siri to 4S only, they can slowly increase load as they sell more devices.
More importantly, streaming everything out to Siri’s datacenter provides some massive benefits.
Apple is able to keep a huge database of every request ever sent to Siri.
Apple could use all of this request data to gradually add functionality into Siri.
Right now Siri only knows about a limited amount of information.
I don’t ask Siri about sports scores or current events.
I think Siri’s future is bright.
Source: This is My Next