The latest Gartner study puts the total amount of compute resources used by Amazon Web Services customers at a number five times greater than 14 other cloud venders combined! And they've done this while spending less than Google and Microsoft. Specifically the vendors are:
- Dimension Data
- Tier 3
Although, there's a glaring omission in Garner's report (one of several reasons why their "Magic Quadrants" are mostly useless IMO). Microsoft's Windows Azure is missing, and I bet their total deployments, given its popularity in the .NET community, are nothing to sneeze at.