Yes, yes, a minor blatant plug for GroovyMag here 
Current December issue has articles on building Swing apps with Groovy, developing iPhone-oriented apps with the iUI plugin, an article on GORM’s strengths, an interview with ContentSieve on their use of Groovy/Grails (their entire stack is now Grails-based), community news and an overview of the Testing plugin (to help with unit testing of controllers).
Upcoming issue topics include
- more Swing apps with Groovy
- using regular expressions with Groovy
- Grails’ webflows tutorial
- a preview of the upcoming Grails In Action book
- a look at the feeds plugin
- how to write a Grails plugin
- community news
- more interviews with real-life companies using Groovy and Grails in production settings
Other topics you’d like to see? Definitely let me know!
If you haven’t picked up your copy yet, I’m interested in knowing why. Email mgkimsal@gmail.com, or post a comment here – either is fine. Is it just something that’s a bit too pricey for you right now? Do the topics not interest you enough? Are you on the fence about Groovy or Grails?
