Apple maps turn by turn (specifically UK)

Hi all,

My google fu is weak today, and I've been unable to find the answer to my simple question.

Does the mini icon for roundabouts show the exits and which exit you need to take? (like nokia drive)

Ive been using google maps (no apple turn by turn on my iPhone4) and the roundabout support is appalling! The icon is generic and you don't see the exit on screen until way after you should be in lane.