Play framework

http://www.playframework.com/documentation/2.2.x/ScalaTodoList
http://www.playframework.com/documentation/2.2.x/NewApplication
https://github.com/playframework/playframework
http://www.slideshare.net/martin_grotzke/wjax2013-play2
https://devcenter.heroku.com/articles/getting-started-with-play
http://www.jamesward.com/2012/02/21/play-framework-2-with-scala-anorm-json-coffeescript-jquery-heroku
http://www.scala-lang.org/old/node/1831
http://www.playframework.com/documentation/1.0/gae

With sbt, bare metal
$ play new myFirstApp
$ cd myFirstApp
$ play

Running sample from playframework github:
$ cd playframework/samples/scala/helloworld
$ sbt
$ run

[Note] For helloword, need to set javac into PATH (/cygdrive/c/Java/jdk1.7.0_07/bin)
[Note] Modify helloworld/project/plugins.sbt with sbt-plugin version you want