So.. apparently the US version of Demon's Soul is also sold-out 1 week after release. When first released in Japan on February 2009 it was also struck with shortage after a few weeks.
Atlus should have seen this one coming.
Hopefully some more copies will be distributed very soon, because if you haven't bought this one yet you're really missing out on one of the better action RPG's released on PS3 this year!
A real sleeper hit.. this thing is exciting and addictive as hell!
I hope I finish this one before Uncharted 2 is out (not putting my money on it though).
PS. Asian version (not Japanese) is full English (voice + menu), so that's still an option too.