Gartner’s latest IT spend update is in and preempts that the migration to public cloud services is currently one of the hottest topics in IT, and the latest forecast found that spending in this area is projected to grow four times faster than spending on overall IT. Worldwide public cloud services spending is forecast to total $89 billion in 2011, up from $74 billion in 2010. The market is forecast to reach $177 billion by 2015.

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