Amazon's Cloud Business growing fast, creating surplus

Amazon announced details about their Q2 earnings yesterday. Their cloud business grew with incredible 81%. This is massive, given the fact that Amazon is already the number #1 company in that area. This quarter, they earned 1.8 billion USD from cloud computing.
Summing up this number, their revenue would definitively reach some 7 billion this year. However, if this growth continues to increase so fast, I guess they could even get double-digit by the end of this year. Will Amazon reach 10 billion in 2015? If so, this would be incredible! Microsoft stated that their growth was somewhere well above the 100% mark, so I am interested in where Microsoft will stand by the end of the year.
But what does this tell us? Both Microsoft and Amazon are growing fast in this business and we can expect that we will see many more interesting services in the coming month and years in the Cloud. My opinion is that the market is already consolidated between Microsoft and Amazon. Other companies such as Google and Oracle are rather niche players in the Cloud market.