WR - Its for anyone who views GPS users as pilots who..
If you want to spend your Sunday afternoon chasing after a symbol of an a/c on a computerized display whilst you squark along then fine. I'll take the chance that you won't ram me up my @rse while I keep a good lookout in front of me, and you'll have to take the chance you don't ram me up my @rse while you're RASing along in VMC playing with your wotnots.