Controller support has now been added for the 64bit version (32bit gamepad version is unavailable unfortunately).
Also there is now an 'EXTREME' mode added (along with achievements). This is a much harder version of the game, in which Jimmy steals almost all of your possessions every time he hits you, as well as hiding the ghost detector in more places. The clues are also less obvious and more in keeping with the original concept.
There are also a few bug fixes, including a fix for a situation some people were experiencing of seeing scenes repeated (caused by saving and loading at certain points in the game).