There is no competitive market for tablets in the enterprise since just about everyone wants the iPad, the new version of which is available this Friday.

A new survey of more than 1,600 enterprise IT buyers conducted by ChangeWave found that the iPad accounted for 84% of planned tablet purchases in the second quarter of 2012. In ChangeWave's previous survey, the iPad accounted for 77% of planned enterprise tablet purchases.

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Apple's dominance in the enterprise is so strong that no rival manufacturers even account for 10% of planned tablet purchases in the latest survey, as Samsung (8% of planned purchases), Amazon (6% of planned purchases), HP (4% of planned purchases) and Asus (3% of planned purchases) rounded out the top five. Research in Motion, whose BlackBerry PlayBook just received native corporate email capabilities in the latest update to its operating system, accounted for 3% of planned purchases in the second quarter. Overall, 22% of business IT buyers surveyed said they planned to buy tablets for their employees sometime in Q2.

ChangeWave speculates that the impending release of the new iPad is the chief reason why so many enterprises are planning to buy iPads this quarter, thus resulting in "an across-the-board decline in next quarter buying of tablets from other manufacturers." The new iPad (see unboxing video) features LTE connectivity, a Retina Display screen that has a resolution of 2048x1536 pixels and the new A5X chipset that has a dual-core CPU processor and a quad-core GPU processor.

Those surveyed by ChangeWave plan to evenly split their tablet data plan subscriptions between AT&T, which accounts for 30% of planned tablet subscriptions, and Verizon, which accounts for 29%. Another 26% of business IT buyers said they didn't know which carrier they would select for tablet data services, while just 4% said they would go with Sprint. Neither Sprint nor T-Mobile offers iPad subscription plans to its users.

Although rival manufacturers have released a flurry of low-priced tablets onto the market, including the Amazon Kindle Fire and the Barnes & Noble Nook Tablet, the iPad is still projected to be the dominant tablet for many years to come. Gartner last fall projected that the iPad will account for more than two-thirds of the global tablet market in 2012 and will still hold a commanding 45% share in 2015. Android-based tablets are projected to steadily increase their market share, however, as Gartner forecasts that they will jump up from 22% of the market in 2012 to 36% in 2015. Microsoft's Windows-based tablets, meanwhile, are projected to have a 10.5% market share in 2015, followed by RIM's QNX-based tablets at 8%.

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