There is actually a pretty strong aftermarket for stylus pens for the Ipad, Iphone and Android tablets.
I use one for my Iphone 4s because the tiny keypad makes for a lot of data entry errors, I have customers sign credit card billings on the Iphone and the stylus works much better than a finger for that, There are a lot less fingerprints with the stylus.
I have tired to use Siri for data input - but it is a joke and works correctly (if at all) less than 10% of the time.
Yet even Microsoft has finally understood that a pen as the primary means of input is a no-go.
I have tired to use Siri for data input - but it is a joke and works correctly (if at all) less than 10% of the time.
I'd call it about 80% accurate for me when I'm just talking casually, asking for things as I would a person. 90% accurate when speaking carefully as if to a regular voice recognition system. 100% accurate when stating phrases I know work ("set a timer for 20 minutes"). However, about 5% of the time overall it IMHO takes too long to talk to the servers to return results. In all, not bad for a beta. Can't wait for iOS 6.