RE: [mediaqueries4]Differentiating touchscreen+mouse from touchscreen only scenarios

>>> Tab Atkins wrote:
>>>> I think this is probably a reasonable approach to the problem of 
>>>> detecting whether it's even *possible* for a user to do something.
>>>> I'd keep the MQs as written today, and just add another pair called 
>>>> "any-pointer" and "any-hover" which address the rest of the inputs.

>>> Yes, that would be ok; "any-hover" looked a bit strange to me, which 
>>> is why I figured out we should maybe merge the two, but it seeems 
>>> understandable.

>> That seems OK to me.  This also has the nice benefit (in contrast to 
>> some of the other options we've discussed) as being compatible with 
>> what we've already shipped in Chrome.

It does sounds reasonable but let me recap to make sure I do understand it correctly.

So we will keep the syntax today and add 'any-pointer' and 'any-hover'.
To clarify the existing syntax will match the primary form of input 'pointer' and will only match one value at a time but the 'any-pointer' keyword could match multiple values if there are multiple input devices. 

So for example on a hybrid device like a laptop with a touch screen (Yoga) we would match the fine input device to the existing keyword 'pointer' while we would match coarse to 'any-pointer'?

Also the UA would determine the primary form of input.