Today the main reason to use Groovy in Seam is the language features: closure, duck typing, list, map, properties etc etc. So essentially, code conciseness. The hot deployment can actually be done with regular classes (provided that you compile them). In the near future, we plan to do some things related to GString and Seam injection. Depending on how people are interested, something like GORM for DAOs might be on the target too. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098952#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...