Qt is a very powerful library for C++, probably most popular for writing GUI apps. Google Earth and VLC are written with Qt (using QWidgets). QML is the new, d

Qt is a very powerful library for C++, probably most popular for writing GUI apps. Google Earth and VLC are written with Qt (using QWidgets). QML is the new, declarative (finally!) way to define the GUI. Blackberry 10 is built atop QML 1.1 (Qt 4.8.4 with some custom improvements for QNX). QML2 in Qt5 runs the entire UI atop Open (E)GL 2 and is very responsive, even on some very old hardware. Last I read the equivalent to Android's 4.0->4.2 graphics backend overhaul isn't landing in master until 5.2, however :/ [] There are 20+ languages supported by (some more complete than others) bindings. http://en.wikipedia.org/wiki/Qt_(framework)#Bindings http://en.wikipedia.org/wiki/Qt_(framework)#Bindings