Just killed him last night. Coincidentally, we've killed him on Earthsday too. I received ToD from my LS the night before and they too killed it on Earthsday. All thanks to a special Dragoon out there who made it all possible ^^
Morbolger died at approximately 7:30 am PST on the Ramuh server today. Of note that I didn't find anywhere on Allakhazam was that Morbolger only spawns on Earthsday according to the Brady Games guide. I don't know if that's true, but it was Earthsday when I killed him. Also, the Stropers are not placeholders, as Morbolger popped in-between Stroper spawn times. Hope this helps, and good luck.
After 10 hours of camping, 20 someodd chymes (and a shikaree ring), 12 wind clusters, Morbolger died by my hand at 7:03PM EST Jan 3rd 06, come 3 hours early if you want to get this mob. Best help I can give is once the time starts ticking down keep focused, there are a lot of other campers here, mostly J ones that just stand around until the mob shows up.
This also drops off Kindred Seal 30 BCNM Contaminated Colosseum from Evil Oscar. Nasty fight since Oscar likes to spam a breath attack that causes instant death, but 4 SMN, WHM and BRD can win fairly easily without using any 2hr. I did 4 runs the other night with some friends. Vine dropped off my orb but nobody needed it... so now it's collecting dust in my Mog House =P.