Sorry for the lack of updates - a busy work week combined wit a nasty cold does not a happy Lucario make. :(
Anyway, Gamestop has recently announced that it will make the Shiny Legendary Beasts available for download at its US stores in the upcoming weeks. Unlike in Japan, US Pokemon players will be given the opportunity to collect all three.
The Shiny Beasts will be downloadable on the following weeks:
Raikou: Jan. 3-Jan. 11, 2011
Entei: Jan. 17-Jan. 23, 2011
Suicune: Jan. 31-Feb. 6, 2011
Not only will you be able to fill up spots in your Pokedex (as well as not have to have to chase them all over creation anymore in HeartGold/SoulSilver), you will be able to catch Zoroark in the Illusion Forest once you transfer them over to your Pokemon Black and White cartridges.