New data from Synergy Research Group shows that Q1 service revenues from IaaS and PaaS exceeded $2 billion, having grown by 56% from the first quarter of 2012. Amazon (AWS) remains in a league of its own with a 27% market share, while a group of IT heavyweights have so far failed to close the gap on the market leader despite an increasing number of service launches and marketing initiatives — Amazon’s share of the market for the whole of 2012 was also 27%.