My Motorola Droid Razor Maxx with Android 4.2 with a Android tablet with keyboard with Android 4.2. I bought Droids, because the Internet reviews were good. I also have two JXD S5110, JXD S501 on Android. The Gamepark Caanoos run on an old Linux kernel 2.6.22 from 2007, but can still emulate NES, SNES, Genesis, MS-DOS, Neo Geo and Gameboy Advance.
This old phone I partitioned with CyanogenMod 10.2 so it doesn't lock permanently. I can use it for Android applications: console emulators, and use the digital camera.