Available exclusively on Amazon-brand tablets, Fire OS is based on Android but looks completely different ... available – you can also download software directly from companies' websites. Check our ...

Windows on a tablet. Since consumers aren't clamoring to buy Windows-based tablets, there's little reason for a manufacturer to offer a premium priced tablet from Microsoft.

Although the Taiwan-based manufacturer declined to give a model name for any of the tablets, there's one running Windows 7, another running Android OS and, possibly, an upcoming Google Chrome OS ...