In 2012, the Apple iPad had a 98% share of tablets purchased by the federal government. Last year, that number faded to 61% During the same time period, the share of federal government purchases of Surface/Windows powered tablets rose from practically 0% to last year's 25%. Android powered slates made up 11% of the total last year.
The ability of Surface users to integrate with Windows PCs is one major reason given by Giovini for the current strength in Surface/Windows tablet sales inside the government. Windows also provides more customization than iOS, according to the report. The research firm notes that while a device that is first-to-market like the iPad has the advantage of early market leadership in a category, staying on top requires that the device adapt to meet customer needs.
Ten government agencies accounted for 88% of tablet purchases last year. The Army spent the most on iPads last year ($22 million), Surface/Windows tablets ($2 million), and Android powered tablets ($2 million). For some reason, perhaps because of the shrinking budget it has been receiving, the low priced forked-Android powered Amazon tablets are the favorites of those doing the buying for NASA.
source: Govini via WMPoweruser