Main updates are:
- LIDAR-based contours (5m, 10m) for much of England & Wales (and some other places too)
Satellite-derived contours for the rest of the world
Globally up-to-the-minute map data (so no waiting for on-the-fly OSM updates to make it through to the map!)
Magnetic North correction; North lines
Additional rendering options (+/- fences, walls, driveways, trees)
Arbitrary map rotation
Lots more little things
One downside is that you don't get a preview of the map rendering and it takes a few seconds to retrieve the OpenStreetMap data.
Site is available at: https://oomap.dna-software.co.uk/
Feedback welcome.
David