Despite its popularity, Android is a downright mess on the security front. Recent data has shown that Android malware samples are up considerably, and the enterprise, especially, is deeply concerned with Google and the security community's ability to stop those threats.
Apple, meanwhile, has charted a different path. While iOS is being targeted by some hackers, it's decidedly an after-thought. And everything from a lack of a USB drive to signs the company might build fingerprint scanners into its upcoming devices seems to indicate that the iPad's secret sauce advantage might not be cool hardware design or differentiated software, but better security.