Are you curious to what percentage of Android mobile phones and tablets are running the latest version of Android?
Usage as on 01/Jul
Usage as on 01/Aug
Usage as on 04/Sep
Ice Cream Sandwich
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.