MT4j - Multitouch for Java™ - is an open source Java™ framework, created for rapid development of visually rich applications. MT4j is designed to support different kinds of input devices with a special focus on multi-touch support. can be used for 2D, 3D or 2.5D (pseudo-3D) applications cross-platform - currently tested under Windows 7™, XP™, Vista™, Ubuntu Linux and Mac OSX™ extensible, component