At least for me, it would make more sense to have one board covering all three versions. Don't know whether it is a limitation of speedrun.com though.

Also, are we ever going to start actually using these, or will all Rayman 3 chat lie in the depths of Skype, never to be seen again.

What are the differences between the three versions (in terms of speedruns, obviously)? I'm thinking of picking up the game, and I'm interested why, for example, nobody runs on PC. Are some glitches harder/impossible on some systems?

GC NTSC is the best version of the game to run because of Camera Buffered Super Jumps (CBSJ) it makes the run a lot more consistent, I would also suggest running the game on a Wii for faster loading times.

GC NTSC - allows for all glitches (CBSJs in particular), although start of level PCM (allowing the player to move in camera mode for infinite flight when the powerup is obtained) is either frame perfect or impossible depending on the level.

GC PAL- same as NTSC except runs in 50hz (so is slower) and cannot be changed to PAL60 without hacks (despite what the manual says). Either don't use this or force PAL60 via hacks (which may or may not be accepted).

PS2 - worst version in terms of speedrunning (and probably overall anyway). The game runs overall more slowly than the other versions (especially in menus, oddly enough), Superjumps produce very little height and the animation for transitioning between levels takes longer (it plays the whole way through, even when the game has already finished saving). Most FMV cutscenes can also not be skipped. As this version is so poor, many glitches have not been tested on it, but it is presumed all glitches work to some extent, aside from camera buffered superjumps. PAL60 is also supported.

Xbox - nothing much is known about this version. It runs at the same speed as Gamecube and it is presumed that the available glitches are the same as the HD version. Rayman's jump height is slightly higher, though not enough to make a difference in speedruns. PAL60 is also supported. If it turns out CBSJs work on this version, it will likely usurp GC as the fastest.

PC - As with every known non-GC platform, CBSJs do not work. Additionally, Glidewalks (besides buffered midair glidewalks) do not work, as well as the one IPG (infinite powerup glitch) used in the run. The framerate is inconsistent for the most part, although it was once believed to run at 72fps, this was caused by an external program, invalidating most runs. FMV cutscenes can be skipped, but the player must press the "E", "S", and "C" keys in order (good job Ubisoft). PC has hence been avoided and is the second slowest version. Some buffered midair glidewalks and moonglides only work on PC and HD (and possibly Mac and Xbox).

Mac - Presumed to be the same as PC, but only supports Snow Leopard and below, thus it has not been tested.

Xbox 360 (HD) - Same as PC, but supporting glidewalks and IPG. There are also extra score counters at the end of some levels, taking up time. Start of level PCM can be buffered using the guide menu.

PS3 (HD) - Same as Xbox 360, but start of level PCM cannot be buffered.