What applications of Apple's Siri for older people?

When you go to the Apple web site it shows Siri (the personal assistant) as being a beta release. This is the software that was launched with the new iPhone. Well if it does half the things suggested by the Apple video then it could be the basis of a great product for older people.

I know there is a long way from the nice promotional ad to the real thing but give it a year or two and this voice activation technology could become a game changer for the way that older people with eyesight or dexterity problems interface with the device. Of course Apple needs to get the volume levels right otherwise it will be useless. Dick Stroud