We've been using Grails (Groovy) at our startup with great success. A few warts early on with regard to how Grails wants to handle packages and URLs, but we pus

We've been using Grails (Groovy) at our startup with great success. A few warts early on with regard to how Grails wants to handle packages and URLs, but we push a lot of transactions through this system (sorry, I don't have exact numbers) and Grails has held up remarkably well. It also cut our initial development time by about half.