The source code for Origo projects is similar to C language, but the website doesn't clearly explain what langauge is being used. See their 'Hello World' example:
// program entrypointexport main System.run application new MyApplication
// MyApplication is the application launched from entrypointclass MyApplication extends Application implements TimerListener
Font myFont = system.load bitmap font from file "myFont.png"
// from class Applicationdraw to <Canvas deviceCanvas>
deviceCanvas.clear
deviceCanvas.draw string "Hello World" to 0, 0 font myFont
// exit when window phone back or symbian right softkey is pressedkey released <KeyEvent evt>
if evt.get key == keys.right softkey
system.exit
Origo IDE Example: Parallax Menu from offscr on Vimeo.
David Gilson for All About Symbian, 7th June 2011