This topic is aimed for those of you out there who like ROM hacking. Someone from the aclmn board is working on a SM64 editor. I'm just throwing this out there because... well, maybe some people here would be interested...

Toad's Tool 64 Video demo.

Personally, I think it is kind of a waste of time... You can only move/ change existing objects. You can't edit polygonal structures, or terrain (floors, and walls)... It just seems like a lot of work to go through for nothing. However, the afore mentioned features would be perfect for messing with Bowser's stages, and Rainbow ride.