The command returns a point in global coordinates but you could 
convert this into local coordinates of the object that is picked:
	Code:
	import viz
import vizact
viz.go()
viz.addChild('piazza.osgb')
ball = viz.addChild('beachball.osgb',pos=[0,1.5,3])
def updatePick():
	info = viz.pick(info=True)
	if info.object == ball:
		print 'global',info.point
		helper = viz.addGroup(parent=ball)
		helper.setPosition(info.point, viz.ABS_GLOBAL)
		print 'local',helper.getPosition() #mode defaults to viz.ABS_PARENT
		
vizact.ontimer(1,updatePick)