Alarmme is a project mainly written in Scala, it's free.
alarmme
Project generated with: $ mvn archetype:generate -DarchetypeGroupId=net.liftweb -DarchetypeArtifactId=lift-archetype-basic_2.8.0 -DarchetypeVersion=2.1-SNAPSHOT -DarchetypeRepository=http://scala-tools.org/repo-snapshots -DremoteRepositories=http://scala-tools.org/repo-snapshots -DgroupId=pl.dwazero.alarmme -DartifactId=alarmMe -Dversion=1.0
Run project with: $ mvn jetty:run
automatic recompilation with: $ mvn scala:cc