Dolphin is currently the only best game emulator for Nintendo GameCube, Wii and Triforce game consoles on Windows, Linux, Mac OS X and Android platforms (both 32-bit & 64-bit). Moreover, it's open source and free to use, developed by the PPSSPP's author - Henrik Rydgård from Sweden.

Hotspot Shield (short for HSS) is a powerful, acclaimed free VPN (Virtual Private Network) agents automatic searching tool. It's mainly designed to effectively protect personal web surfing security and privacy; as well as breaking through the local network limits to access those blocked, censorship websites (like YouTube, Facebook, Twitter, or even Gmail) in some countries.

Happy Chick Emulator (also called 小鸡模拟器) is a free versatile emulator APP from China I recently found. It makes playing video games on Android or iPhone never been easier. It not only has built in a variety of excellent emulators, we can also download any game ROM with one-click, all of which let us fondle admiringly.

My Boy! is a widely used super fast and full-featured GBA (GameBoy Advance) emulator on Android platform, it is applicable to any version of Android devices (from very low-end phones to modern tablets).

Professional Android 4 Application Development is written by the authoritative Android expert Reto Meier, covers all the latest contents, it is the ideal guide to learn to use the Android 4 SDK to develop mobile application.