ClickPilot is great for comparing thumbnails with competitors and seeing what they will look like on desktop, but I have to use a different service to see what they look like on a mobile device. Or how the thumbnail looks in different areas of the app or site, where things are presented in various sizes (Home Page, For You, Up Next, etc.). Sometimes a really attractive thumbnail doesn't work well on a mobile device, or at smaller sizes. It would be awesome to be able to use ClickPilot for all of that.