GameMaker HTML 5 version Beta out tomorrow

The open beta of is out tomorrow for teachers/hobbyists/indies who want to get ahead of the game.
If you are extra keen you can buy it before release with the extra discout of $20 using the code BETA-HTML5.
I’m looking forward to trying this and also AGK http://www.appgamekit.com/, which young learners may progress on to after GamerMaker. Both provide ways to create cross-platform apps with less of the pain.