duncan mackie
Money List Winner
The point timd77 makes is a good one though. Why are you allowed to consult the rules app on a phone that has a compass but you can't consult your GPS app for your distances?
because the rules have been written accepting that you cannot ban people using phones (don't let's get into club practices, the simple situation in common law is that you can't - look at the issue in schools if you want to see more).
however, if you use a phone as a DMD the rules applicable to DMD's apply to the phone.
if you look at the growth in non-conforming DMD development (and more scarily sales as well now) you can see exactly why such rules were put in place when DMD's were first implemented.
I'd probably go further to suggest that the general increase in the sales of non conforming golf equipment overall has to be a cause for concern. however, whilst the use of a heated head cover, or illegally groved wedge, is a matter of fact, the pushing of a button on an electronic device to activate a non conforming feature is seen as a 'risk' to far (even within a game that maintains it's fully based on an individuals responsibility to police themselves). Whilst the same button can exist, and be used, on a non-DMD device, it's only really their use in association with accurate distance information that creates a meaningful benefit (as many comment on this thread and others highlight - knowing the exact barometric pressure and temperature rather than just it's dry and hot, or I'm at 5000ft here, can easily be used by an electronic device to adjust and deliver exact playing distances in the same way as slope indicators for slopes.
Turn the whole thing around and you see that DMD's were permitted to enable the average player to play most courses with the best yardage chart that could be purchased - the rules around them are there to ensure it's that, and no more.