1)
The ability to use Ctrl-S when you edited someting in a WP, track, etc. Now, you have to press the save button.
2)
The ability to force QV to use WGS84. Now, when i use a usergrid for example and switch from usergrid to dd mm ss.ss, i keeps the Datum related to the usergrid. When you forget that, all coordinates afterwards, ware 10-25 meters from the actual place.
Michel