I know a lot of folks believe you should be able to backup your trailer without any new fangled stuff.
For those with a 150 and the new feature, I have seen several posts in various places where people have had problems finding a spot to mount the sticker. I just saw a post that stated that Ford supports mounting the sticker in either a horizontal or vertical orientation. Only requirement is that it has to be in the magic green zone of 7 to 22 inches.
Hope this helps those who are backup challenged.