Ok this is going to take some serious explanation, but here goes.

Firstly, this would only allow text to be stored, no coding.

(eg: {x: abc erer 2434wm nwef} )


This will work much the same as the hiddenvars that we have at the moment, however this will be modifiable by every single person.

This will allow for much more powerful codes to be created that would require an external database normally.



One thing I haven't worked out yet is how to best implement it/update it.

Whether it's calling a predefined Ajax Function such as:
Global_save(prefix, item)
Which will save:
{prefix: item}

And then, that'll be saved in a variable.

Just my suggestion, would it to be implemented

So what you're basically saying is make a variable that can be updated from any page?

I it.

Yup, and that can be updated by any member too, it's not member specific just like the hidden vars is.