The Linux Deployment Iceberg
There are over 1 million Linux system deployments worldwide. No, make that 2 million. Wait, it's really closer to 3 million. Ok, I really have it this time--there are over 3.5 million Linux deployments worldwide as of January 7, 2009. But according to the Linux Counter, there's fewer than 150,000.
So how many Linux systems are deployed worldwide?
The answer is that no one knows how many and any guesses are purely WAGs.
The fact is that Linux deployments are like an iceberg with only about 10 percent showing up in the light of day with the other 90% under the radar.