Recording tracks and poi on android

http://wiki.openstreetmap.org/wiki/Android lists all known Android apps. osmtracker is likely the most popular pure tracking app.

Osmand is okay for showing a map and for navigation (though the most recent release seems to be a big step backwards) but I didn't like what I saw for adding tracks and POIs enough to even try it.

Don't know if it is the best but I use osmtracker for creating GPX tracks and POI waypoints.

In my area many highways are lacking correct maxspeed tags and traffic control signs and signals are also lacking. I found it fairly easy to create a custom button set that just covers those items to allow one button (no menu hierarchy) tagging of the things as I drive by. If walking, then I mostly use the voice record feature to say what the item is as I pass it. That works very well for gathering address information, etc.

Regarding placement, when I am walking (slow speed) osmtracker does a very good job. If I am driving the locations are consistently a little off, I think due to timing on my button pushes.