Some of the new siri features in ios6 are really cool.

you can launch apps, eg ‘launch facebook’

you can post to facebook directly from siri eg ‘post to facebook’
you can post to twitter directly from siri – eg ‘post to twitter’

we now have sports results in the uk too – ‘what are the lastest permiership results’ [unfortunately it doesnt know the latest SPL results, let alone the division 3 results, so I cant yet follow rangers by asking my phone]