Guys you may not one of those like me who have been following Firefox 4 and using it since the first Beta stages but I am certain that this new interactive Map will make will make you want to download FF4 for sure.
Try it out at glow.mozilla.org
This new glowing world map tells by a small glow where the FF4 is being downloaded at the very moment.
My little observation is that while users In Pakistan are busy downloading FF4, specially in Karachi area.. but there is not even a single glow in the Middle east. Strange.