I guess the cheap version would be if someone was able to create a cell phone app that allowed you to pick a club, then push a button to start the tracking and push a button to end the tracking. That way you would get the similar data. I don't think it would be too hard to develop. There are half a dozen GPS apps that allow you to mark locations.
Spot on. I believe that some of the phone based GPSes do in fact offer something like that, though I've never used them because I have a standalone unit.
I don't want to come off as arguing against the device. This device seems to fulfill its stated goal elegantly, and I think it's interesting and moves the state of the art forward. My only point was that it seems like a relatively high price point for that convenience, particularly when it doesn't obviate the need for also still carrying a range finder.