The first is that there are plans for a Grails bootcamp. It might be an all-day event on a Saturday, it might be a two-hour event at a regular meetup. So far there are not too many details.
I suggested that this could be used to make a beginning Grails tutorial, like Michael Hartl’s Rails Tutorial. I think the Groovy community should shamelessly copy things that the Ruby community does. They built up a strong, thriving community. Plus, a lot of developers are looking for alternatives to the MRI since it does not handle concurrency too well. Some people are looking at Elixir, some are looking at JRuby. I think Groovy would be a good fit.