Good Technology, a company behind a BlackBerry-like enterprise messaging server, is out with their latest data report on mobile devices in the workplace, gathered from thousands of customers, including 40 of the Fortune 100. The full report (available here) shows the explosion of iPads, iPhones and Android handsets in the workplace in the period between December 2010 through March 2011.

John Herrema, senior vice president of corporate strategy with Good Technology, said in a statement that the arrival of Verizon iPhone and release of iPad 2 helped Apple make strong enterprise gains. There’s also that cheap iPhone, he added:

While noting Android Android activations “will overtake iOS” in the course of 2011, Herrema noted that Apple’s gadgets were killing in the first among Good’s enterprise customers and their end users. More interesting findings and nice charts below the fold.

Both iOS and Android are being deployed in the workplace by the polled companies in large quantities. Note that the survey excludes BlackBerry which is still the leading business platform. iOS devices represented nearly two thirds of net new activations, or just under 70 percent, throughout the first quarter of 2011. iPhone 4 had the highest rate of activation (16.9 percent) for any new device since Q3 2010. Share of iPad and iPad 2 activations dipped to 20.4 percent over the quarter from 22 percent, which can be attributed to the ongoing iPad 2 supply problems which led to the lower-than-expected sales of 4.69 million iPads in Q1.

Android devices declined approximately 30 percent of all net new activations during the first quarter. Apple shipped a whopping 18.65 million iPhones during the quarter, making them the number one handset maker in the world by revenue. AT&T and Verizon reporting 3.6 million and 2.2 million activations, respectively. The iPhone now accounts to half of Apple’s revenue.