It all depends on what operating system it runs in my opinion.  *Most* tablet operating systems are just glorified, "user-friendly" cellphone-based systems (Android, iOS, WP7), and should *not* be on Super User in my opinion.  If the tablet runs Linux/OSX/Windows 7 or 8/Unix, then it's fair game.

Why?  Well, can you *create and program* an application while running the device?  Do you have the flexibility and choice of compiling your own applications that run on other operating systems?

I'm not saying that you **can't** do these things, but use some common sense.  There's so many applications I use on a daily basis that work on Windows/Linux/Mac.   And if it didn't, I could (in most cases) easily just compile it on the new operating system.

The same can **not** be said for most phone/tablet operating systems, and I think that's where we should draw the line.  These are highly embedded devices with very specific hardware and software requirements, removing most of the modularity from the system - and that's what a "computer" is all about.  I think [KronoS](http://meta.superuser.com/users/47225/kronos) worded this point very well:

> One thing I would add is the fact that the hardware cannot be upgraded
> either. I.e. The memory cannot be raised. The fact that it's an
> 'embedded system' makes it just like the game console and the cell
> phone. I forsee SE starting it's own dedicated site for these but we
> don't need to service them.

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My final argument, from the FAQ, Super User **is not about electronic devices, media players, cell phones or smart phones**, except insofar as they interface with your computer.  If you want to argue that your tablet is more then a smart phone, we'd love to see some evidence.  **There is a distinction here, and you can't ignore it just because *you* feel like your question fits here.**

If your tablet runs iOS/Android/WP7, it does not belong here.  If it runs Windows 7/Linux/OS X, then it belongs here.  'Nuff said.