How to get vertex coordinates in blender game engine

Hi!
I’m a newbie in python scripting and I was wondering if I can get the clicked object vertex coordinates using a python script in game engine. Now I can only get the object center, with camera.getScreenPosition(objectName)[0]. Can anyone help me?
Thanks in advance!

Look and try for yourself:

Used in a late Blender 2.63

Attachments

test_1.blend (395 KB)

you can change vertex color live in BGE ?