GPS units have largely taken the place of cue sheets. Riders now create routes using RideWithGPS or other software and upload the route to their Garmin or other navigational device. Although among randonneurs it is said that you can tell the GPS users because they ride 100' past the turn and then come back to it. That said, when I plan group rides, I always publish cue sheets along with the TCX file for the route and of course the link to the course on the appropriate app.

I create cue sheets from a CSV file created by the app. My wife and I ride a tandem. She's the navigator, while I'm in charge of keeping us on the road and alive. She likes to have both a cue sheet and a GPS unit. The cue sheet allows her to look several turns ahead, while the GPS only counts down to the next turn and then only in the last 100 meters does she see what the turn is. Hence that saying about randos using GPS while riding somewhere they've never been before. Reading what I've written, I wonder why I don't increase that to 200 meters. I'll ask her about that.