What I'd like to see is an open-source version of Disney's Coaster game/simulation. Or for that matter, any kind of roller coaster simulator. There's an excell

What I'd like to see is an open-source version of Disney's Coaster game/simulation. Or for that matter, any kind of roller coaster simulator. There's an excellent Windows roller coaster simulator out there ("No Limits"), but nothing like it exists on other platforms.