title: Grails vs Roo - why SpringSource is pushing two very similar technologies?
body: <p>SpringSource (now VMWare) has two very similar technologies: Grails and Spring Roo. I have been using Grails, but I see that SpringSource is actively working on something that is a competitor for that technology and that makes me worried about the future of Grails.</p>
  
  <p>Does anyone know how these technologies relate, are they going to be merged, or one of them will be abandoned?</p>
  
  <p>Besides, are there any important technical differences betweent Grails and Roo?</p>