There is “Vespucci OSM Editor” here:
http://code.google.com/p/osmeditor4android/
Not very useful at the moment.
Another tool in this category is “OSMTracker for Android” http://code.google.com/p/osmtracker-android/
OSMAND use bitmap tiles, they don’t render OSM data. I use another app of this sort, I found it better - Orux maps http://www.oruxmaps.com/
I think it is the best in class. It have no integration with OSM bugs, but I can still mark POI’s and use it later with JOSM…
For Skobbler - will give it a try