Currently, Android based smartphones are creating bang in the entire mobile industry and at every regular period of time, Google's Android launched new and advanced version of its' operating system. The latest version of Android OS is 4.1 - Jelly Bean.
1) Android 1.0 - Astro
2) Android 1.1 - Bender
3) Android 1.5 - Cupcake
4) Android 1.6 - Donut
5) Android 2.0/2.1 - Eclair
6) Android 2.2 - Froyo
7) Android 2.3 - Gingerbread
8) Android 3.x - Honeycomb
9) Android 4.0 - Ice Cream Sandwich
10) Android 4.1 - Jelly Bean