I would recommend V-Play (v-play.net) – it’s a cross-platform game engine based on Qt for iOS, Android, Symbian, MeeGo, Blackberry10 and also can export for native desktop applications for Windows, Mac and Linux.
It’s based on C++ but has a neat scripting support for QML & JavaScript. QML is a no-brainer to learn and can boost your productivity as less code is needed – just see the comparison with cocos2d-x(60% less Loc) or Corona(15% less LoC) for a comparison of the same games.
(Disclaimer: I’m one of the guys behind V-Play)