I wondered if there was a limit to Ikemen's slot concept. I use it a lot myself.
This is a cool screenpack but it does become cumbersome if you have a lot of characters loaded (over 1000 and growing myself) so while it may be "infinite" in theory maybe not the best for large collections unless you have a lot of patience for scrolling. For a more normal collection this thing is fairly awesome and I kind of dig the background.