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Research firm Gartner has released its study of second quarter global mobile sales and, to the surprise of no one, Android and Apple are dominating the smartphone market. Globally, smartphone sales were near 107.7 million, of which Android was the top performer (43.4% on sales of 46.7 million units) and iOS was third (18.2% on sales of 19.6 million). Between the two, they accounted for 62% of smartphone sales worldwide.

Nokia's Symbian is still clinging to the leader board, with 22.1% of the smartphone market on 23.8 million units sold. That is way down from Nokia's high when it controlled nearly 48% of the world smartphone market. Overall, Nokia is still the world's largest cell phone manufacturer, having sold 97.8 million devices in the quarter, good for 22.8% of the market. Yet, Gartner does not see Nokia's lead lasting into the third quarter and beyond.

With Citrix escalating its fight against VMware, and VMware expanding its arsenal, it's worth taking a look at the current state of the virtualization market. Gartner has published its Magic Quadrant for x86 Server Virtualization Infrastructure report.

The MQ puts all the major players in one of of two quadrants: leaders or niche players. The other quadrants are completely empty.

A recent report from Gartner details a spike the firm observed in the number of search queries for the term "PaaS" from users of its website. Independent researcher Louis Columbus summarizes the report on his blog. He notes that at Gartner, search terms are considered a leading indicator of future IT spending.

The number of searches for PaaS on Gartner.com spiked from around 250 in December to over 700 in January, and have remained between 650-700 in February and March.

I guess it's collaboration day at ReadWriteEnterprise. Earlier today we looked at Jeff Jarvis' thoughts on collaboration and left you with some questions to ponder.

So here are some more things to think about. Gartner has identified five common myths about collaboration.

Global enterprise software revenue increased 8.5% to $245 billion in 2010 according to Gartner. Enterprise software sales declined 2.5% in 2009, so this is encouraging growth for enterprise software vendors.

The growth beat Gartner's forecast from last September, which put enterprise software revenue at $232 billion for an increase of 4.5%.

Want a more global perspective of enterprise technology trends? Gartner's 2011 CIO Agenda survey included responses from 2,014 CIOs across 50 countries and 38 industries. In a recent announcement, Gartner detailed the responses of 36 top CIOs in India.

Cloud and mobile technologies beat more traditional concerns like enterprise resource planning and network communications.

More than half of the 517 organizations surveyed by Gartner use open source software (OSS). When the firm first started tracking open source in the enterprise five years ago, only 10% of organizations were using OSS. Gartner published the results in a report titled Survey Analysis: Overview of Preferences and Practices in the Adoption and Usage of Open-Source Software. This announcement summarizes the findings.

Decision makers aren't just looking to OSS because it's cheaper - they're also trying to gain competitive advantages through open source. "Nearly one-third of respondents cited benefits of flexibility, increased innovation, shorter development times and faster procurement processes as reasons for adopting OSS solutions," reads the announcement.

New research from Gartner indicates that despite all the buzz about tablets, smartphones are still the number one priority for consumers - and by extension, for workers. Forrester has a new report out on the use of personal smartphones at work. According to Forrester's research, 18% of workers are using smartphones for work - even if it's not officially sanctioned by IT.

Responding to the Quora conversation we covered last week, Gartner Research Director Lydia Leong published a blog post detailing the process of creating a Magic Quadrant report. " We lay this process out formally in the initiation letters sent to vendors when we start MQ research, so I'm not giving away any secrets here, just exposing a process that's probably not well known to people outside of analyst relations roles," she wrote.

Last month Gartner released its Magic Quadrant for Cloud Infrastructure as a Service and Web Hosting. The report positioned AT&T, Rackspace, Savvis, Terremark and Verizon as the leaders. Controversially, Amazon.com didn't make the cut as a leader partially because it doesn't offer certain features such as managed hosting or options for hybrid clouds. Amazon.com and many of the other providers ranked are focused on developers and on providing web services, not hosting virtualized enterprise applications such as ERP.