Serious prior use on this one. Would have to read this closer to make sure prior use exists, but I am pretty sure it does.
In 2001, the owner of a company I contracted to requested that I track the location of a user's mouse every time it came to rest in order to improve the user experience on the website. It revealed some really interesting data that drove the design of the site. Furthermore, we started to use it to modify the search results based on user behavior. If someone hovered over a like sounding artist, but didn't click, we would compare that against what they ultimately selected and decide whether to display more of both or to eliminate the one they hovered over.
Furthermore, that type of experience existed prior to then, as it wasn't even an original idea to the company's owner. He had picked it up from user experience testing when he worked at Microsoft in the 90s.
Total prior use here, this should be denied.