I'm currently contacting amazon.com customer service to ask why my order has not arrived yet (let alone been shipped out.)
It's "In Stock", I preordered it on May 1st, and I'm a Prime Member, which means I should receive my item on the day it is released (or immediately afterwards.)
They are currently saying it won't arrive until this coming Thursday.
Ridiculous...
EDIT: Just got off the phone with amazon customer service, and they upgraded my shipping to "One-Day Shipping" at no extra charge so that way I can now receive the item on Tuesday. Still not the best solution (I really wanted it today to listen to over the weekend) but it'll have to do.