Google has announced that they have activated 900 million Android devices since the launch of the platform, a massive achievement for the company. In addition to 900 million activations, Google has stated that there have been 48 billion app installs as well.
It's no surprise that Google is the largest player in the smartphone market after seeing these numbers, which emphatically underline Android's massive global footprint. While iOS may command a large chunk of the market - and the profits in that market - it's clear with these numbers that Google has an even larger footprint in the market.
When Android entered the market many years ago, it was an underdog at that time but it's clear that their strategy to keep their product open, has worked. We would expect that Google will cross the 1 billion mark in the next few months as more users adopt smartphones and experience Google's smartphone OS.