Raven Zachary, Research Director at the 451 Group along with Brenon Daly, just released a brief on open source mergers and acquisitions, "Open Source Q&A comes of Age". 
Their summary indicates a considerable growth trend:
After several years of mostly one-off deals, open source deal flow took off in 2007, setting a new record for M&A in [...]

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VMware announced the release of VMware Server 2 last week. Which is a free (as in beer, not freedom) follow-up (for free offerings) to their VMware Player that was released two years ago this December. This is an interesting turn of events as the VMware Server was a premium offer and now looks to [...]

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Dell announced the acquisition of EqualLogic tonight for a pittance… $1.4 billion. The storage virtualization vendor is the biggest acquisition in Dell history:
Under the terms of the agreement, Dell will purchase EqualLogic for approximately $1.4 billion in cash. The acquisition of EqualLogic is expected to close late in the fourth quarter of Dell’s [...]

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