Recently, there was released version 4.6.3 of very popular game development platform Unity [http://unity3d.com]. As it is multiplatform engine, it supports all major mobile architectures. That makes Unity one of the best Mobile Solutions in game development area. Target application can be built for Android, iOS, Windows Phone, OS X, Linux and Microsoft Windows. Besides, it also supports such pure game platforms, like Xbox, Wii and PlayStation. Technically, any Unity application uses OpenGL and DirectX. Unity platform is widely used by all kinds of game development companies from huge monsters (EA, Blizzard) to tiny teams creating indie-games. Development version of Unity3D package is free, so, anyone can download and install it to start new game project. There is modern IDE with intuitive drag-and-drop interface that running both on Windows and OS X. It allows developer to concentrate on the aspects of the game instead of pure technically points of the project. You can debug the game right in the IDE. It doesn’t need any mobile device or emulator to create Mobile Solutions by Unity3D engine.
Mono development platform
Unity is based on Mono platform [http://www.mono-project.com]. It’s a bit modified version of .NET framework. The main feature of Mono is a multi-platform support, that beyonds regular .NET world of Windows architecture. Unity is one of the most actual application of Mono as a development platform mentioned as successful example in various articles.