I'd love to see whether the foot traffic coming off a green is really spread out on some holes and really concentrated on others, due to bunkering and slopes.
I am not so interested in seeing where all the players wind up on a given day, in terms of the strategy of the hole, though. The poorer players are almost random in their movements, so it doesn't help to pay too much attention to that.
Tom D., I'm a bit surprised at your comment. It seems to me that almost anyone could pre-determine, based on bunker placements, mound and hollow locations and next tee consideration, where the traffic on and off the green is going to occur. The question more so in evaluating a green design is the decision to deal with that or not. Anotherwords, if you are designing a greens complex, approach and surrounds by best utilizing the entire site for that greens structure based on existing topography, and there is a totally obvious point of on and off the green due to these placements and locations, and you decide to build the best green complex over rearrange the location to fit the entrance and exit traffic pattern, then that is the strong side of the art side of design/architecture over design engineering/construction. But, if you either have no specific topography on a potential green site (flat) or you rearrange the shaping design to strongly consider the traffic, framing, and purposefully make design decisions about locations of features, then you are on the strong design, engineering/construction side of architecture over the possible lost art opportunities of siting the green for maximum fun VS efficiency. I don't think either is wrong, it depends on private and less rounds per year play VS high traffic public.
But, having that info on player locational habits and speed up and slowdown points during play seems like valuable info to have. I don't know how valuable after the design is in the can however, unless remodelling is a consideration.
I'm also not too sure just how random lesser players are in their movements. I think that tee orientation and slope can pre-determine a tremendous amount of prediction where their tee shot will go a high percentage of a time. Again, I'm not so sure that this type of data on an existing course is much more useful than for consideration of remodelling, regrading tees, or seriously tampering with greens features and surrounds.
So yes, remodelling is the venue that this technology makes the most sense in utilization, in my view.