That's probably in our favour, allowing us to compare the map with other titles. How big is the map We don't know for sure what zoom level the leaker was using but a good guess is that he/she maxed out to top level. It's a little fuzzy but that's typical PipBoy for you. This was achieved by piecing together each of the video frames and making one complete image. The image below shows the stitched together map from Fallout 4.
First we had the complete perks list (which I've updated on this site) but just today we saw the entire map leaked online.
Reddit has gone absolutely crazy the last couple of days, with a shed load of leaks from all directions. This is the first reveal of the official in-game map, giving us a chance to compare the size with other Bethesda games such as Skyrim and previous Fallout titles. As we anticipated, someone has leaked the entire Fallout 4 map from the Pip-Boy.