Source code is available at
http://code.google.com/p/vataviamap/

Can't Tell is similar to Skip, but if enough people say Can't Tell, we will stop showing that place.

I can't seem to get the maximum zoom with that map control. I am working on it.

There should not be any roads drawn on top of the satellite image while using Quick Check. If you have somehow changed to the Yahoo Hybrid map with roads drawn on it, change back to Satellite. We cannot be looking at the Yahoo roads layer while editing OSM.

A very nice before and after set. The nice buildings and paths and POIs give a good idea of how much can be added even after the roads are correct.