chumly :
...and this is why everyone uses Linux. Right? Oh wait... No one uses Linux. And it's FREE. What's that tell you about Linux? "With some work" doesn't do anything for me right now.
To be fair, most people don't use linux because it isn't pushed in their face with the purchase of every personal computer since the 80's like Windows was. Most people don't "pay" for windows (though technically the cost of the OS is built into the sale price of a computer)--psychologically, it's just as "free" as if they had linux.
Regardless, this android = linux statement is horribly overblown. Android is android. It has its own code and libraries (separate from core linux--Google has its own proprietary code in android that it retains as proprietary and does not make available under "open" platform ideals). It also has its own support and app/development ecosystem. Having used linux to build it doesn't equate it to linux, and linux's qualities don't necessarily transfer to android's qualities. It's just a fact of the matter that tablets gained traction as recreational devices, not productivity-replacement devices. You still never specified what is so insecure about Android vs. any of the other operating systems you can choose from.