Last week I was in Canberra presenting at the Lunchtime and Late Afternoon sessions of the User Group. Athena's just pinged me to say that she's posted the slides and code here. Enjoy!
Update - I've also got a detailed walk-through document for the demo I used as part of the presentation.
BTW, I'll be presenting this stuff in Adelaide on July 13 and in Sydney on July 20th if you're interested in seeing it.