Just to also point out, PAL versions of any games require PAL consoles. In other words, you'd have to buy a European Gamecube to use the PAL version of Pok?mon Channel. Or getting a mod chip for other countries' Gamecubes, if they exist...
In America, Jirachi came out as a free bonus gift when pre-ordering Pok?mon Colosseum. The Gamecube disc contained trailers for Pok?mon Colosseum, Pok?mon Jirachi, the Wish Maker, and the GCN to GBA download of Jirachi. Oddly enough, it only works with Ruby and Saphire only.