Tom,
Great idea, I'm sure the lobbying groups of Garmin et al will sign up for it in a second - especially since electronic yardage devices seem to be the only golf item flying off the shelves these days . . .
There would certainly be initial "slow play" pains to go through as people rip 3 irons over the green from 150 yards away but I agree that over time it would raise the average golfers conciousness to a higher level as experience on particular courses builds. Unfortunately, many golfers do not want this as has been discussed. The American cultural mantra of - Make it easy, make me stupid, do whatever you want as long as I score better - is completely juxtaposed with taking away yardage.
As I mentioned on a previous thread, it seems like golf is being compartmentalized into several very different games - ie) cart golf, walking golf, range finder golf, 460cc golf, hickory golf, persimmon/forged golf, dream golf, fazio golf, professional golf, etc.
I think the reason for this falls squarely at the feet of the USGA because it is their responsibility to put guard rails on the game.
Another reason is the proliferation of public golf courses. If the average golfer lives in a city with 100 public courses and he plays 20 different courses once or twice a year then distance information is much more important to scoring. If a golfer plays 20 times a year at his private club then after a few rounds it is much less relevant.
That raises the question of scoring and the obsession in the US with handicap. If we all played matches then the question of interpreting distance becomes an exciting element of the match. In stroke play format on an unfamiliar course, not knowing distance just pisses people off.
I'll happily sign the petition to the USGA to get rid of distance info - who's putting it together