Game Maker 7 is the current version of Game Maker. A public beta was released on December 2006. One of the main updates in Game Maker 7.0 is Windows Vista compatibility. This addition of code will make the footprint of the smallest Game Maker game to be no less than 2 megabytes.
Game Maker 7.0 does not support the Wiimote. If you want to know why, please see our article Game Maker and The Wiimote.