Are you curious to what percentage of Android mobile phones and tablets are running the latest version of Android?
Android Version
Internal Codename
Usage as on 01/Jul
Usage as on 01/Aug
Usage as on 04/Sep
1.5
Cupcake
0.2%
0.2%
0.2%
1.6
Donut
0.5%
0.5%
0.4%
2.1
Eclair
4.7%
4.2%
3.7%
2.2
Froyo
17.3%
15.5%
14%
2.3.x
Gingerbread
63.6%
60.3%
57.2%
3.1
Honeycomb
0.5%
0.5%
0.5%
3.2
1.9%
1.8%
1.6%
4.0.x
Ice Cream Sandwich
10.7%
15.8%
20.9%
4.1
Jelly Bean
N/A
0.8%
1.2%
Google has just updated their distribution charts for the Android platform and it suggests that 20.9% of Android phones and tablets have Ice Cream Sandwich installed. Gingerbread, the most popular Android version ever, still powers 57% Android devices though it was released way back in December 2010.
The above data is based on the number of Android devices that have accessed Google Play within a 14-day period so it may not account for the Android users who do not have Internet on their phones (and this may not be a small set).
According to the following video, there are well over 400 million activated Android devices around the world.