Claudio,
>I´m doing the same here in Brazil, but on October 15th. We could exchange some info about it. There´s a LOT of new stuff, and it´s still difficult to find the best sample to demoing for people. ;)
Depending on how much time you have, maybe a brief checklist overview of the tons of new features that are simple to demo, followed by an in-depth exploration of two or three of the major new features like CursorAdapter, XMLAdapter, Bindevents, Try..Catch....
Hmmm, seems like there are enough additional MAJOR features that it will take several user group meetings to show them all.
I think that practical application of the new features, such as you showed in the UT mag artice, would be great. (I may steal your excellent example of querying the UT webservice in the GetXML method of CursorAdapter.)