On 10/08/2013 12:09, David.WE.Roberts wrote:

I seem to have multi-window capability on my Galaxy S3 phone - just no
idea how to invoke or use it.


Long push on the "back" capacitive "button" and you get a margin on the
left from which you can choose from a selection of apps. No split
screen, just instant (at least on the phone I'm using to test it)
switching between the selected apps. And imo, totally pointless.
Another long push turns the "feature" back off.

On a related note, the abomination that is Surface RT has been reduced
in price again...

Lee