http://tipit.to/ http://tipit.to/ is mostly GWT on the front and all java on the server. CF is crap. Groovy is okay, but not -that- great. I'd go with jython o

http://tipit.to/ http://tipit.to/ is mostly GWT on the front and all java on the server. CF is crap. Groovy is okay, but not -that- great. I'd go with jython or jruby instead if you're thinking of using Groovy. Scala is absolutely great. It's my favourite language. tipit's server side isn't Scala based only because I wasn't fully aware of Scala when we started out. Scala is functional in theory but even with a very imperative background you can write your code and slowly get used to solving problems 'the functional way', which does come off a bit cleaner (e.g. using case classes).