I was just fiddling with Google's Blog Search and searched for "java tapestry"; here's a few things I stumbled upon:
- Someone named "Audible Smirk" is running their own NCAA-style Java web framework tournament
- Alex Kotchnev is looking to create Grapestry: a Tapestry front end with a Grails back end (but seems to be using Tapestry 4)
- Tom Davies is Combining Tapestry 5 with the functional programming language CAL
- I found an excerpt from Alexander's book that covers building advanced components
Fun stuff ... and I have more advancements for Tapestry 5 about ready to announce!