I've added a new screencast, this one showing off the use of the tapestry-simple Maven archetype to create a new project. It runs about five minutes and shows off how simple it is to get up and running.
If you haven't built Tapestry 5 locally, you need to remember to add
-DremoteRepositories=http://people.apache.org/repo/m2-snapshot-repository/ to the command line.
I'm thinking about starting a vote to do a preview release of Tapestry 5, just to get the necessary JARs and archetypes into the general Maven repository.