There’s no doubt that the best question (certainly one far easier to answer) is ‘what tablets don’t use Android?’ Android is by far the most common Platform for pc tablets at time of writing. There are others, of course, but Windows 8 is probably the closest when it comes to market share right now.
Apple iOS, developed for iPad, iPhone and iPod Touch and can only run on Apple products. Windows 8 is still testing the water, but the modern version has received a mixed-to-good reaction from critics and consumers alike, so we are able to expect to view more of that. Windows 8 can be licensed for use on other tablets, but, as I said, it’s still quite new at the moment.
Elsewhere, HP have their own os, webOS. Reported by Dan Grabham at ‘TechRadar.com’,
“webOS started life in the 2009 Palm Pre smartphone and, HP bought Palm in 2010 and immediately said it would be using webOS in other devices. The HP TouchPad is the first fruit of this in tablet form – webOS 3.0. webOS uses touch in a similar way to the iPad, but application windows run in separate so-called cards – that means you can flick between different app screens – perhaps a webpage and an open email – all of which are displayed on ‘cards’”.
The only real other common tablet OS may be the Blackberry OS, another somewhat lesser known system. With the Blackberry OS, Grabnet says,
The Playbook’s bezel packs hidden secrets. Swiping your finger from the edge of the device, across the bezel and onto the screen will bring up all manner of options and features, depending on which side you choose to swipe from and which app you’re using”.
However, from all of these, Android could be the mostly used and probably essentially the most familiar of the modern customer.
To better answer the original title, I did search for the complete list of Android tablet pc’s online; for myself, I couldn’t find a definitive list and, after looking for a while, I also discovered that a great many of the web pages which claim to possess such a list are woefully lacking. In reality, the vast majority of them merely were not around anymore. I’m sure someone around has an actual figure, but I don’t.
The situation is that Android is accredited to so many potential suppliers that there most likely are not a way of knowing for sure.
From Wikipedia: “Android has an active community of developers and enthusiasts who use the Android source code to develop and distribute their own modified versions of the operating system. These community-developed releases often bring new features and updates to devices faster than through the official manufacturer/carrier channels, albeit without as extensive testing or quality assurance”.
Basically, as hard as it will be to trace the official statistics, it is almost impracticable to trace many of the unofficial ones. Simply put, Android is ubiquitously.