Movannah is being developed for all possible platforms. However, there are two different versions available. The second version is preferred for those who are running OS X (10.5-10.6).

Generic Movannah (for everybody) - Build 150 - 01.11.10:
Movannah-1.5.zip (622Kb)

Mac Movannah Application [.zip -> .app] (only for those running OS X 10.5-10.6) - Build 150 - 01.11.10:
Movannahx-1.5.app.zip (967Kb)

If you want to get the debug environment up, run the application in the terminal like this:
java -jar Movannah.jar false
or download this.