This is what I've been waiting on. I'll try to update through XMB without downgrading first. If you don't hear from me in 15 minutes, call an ambulance.
EDIT: It got to 72 percent of "Copying update data to system strorge..." before I got the "The data is corrupted." message. But hey, that's 72% more than it got on previous releases. I'll try it from recovery now.
EDIT2: Updating from recovery is also a fail. Got the " The data is corrupted. (8002F2C5)" message. Guess I'll have to update it the new/old fashioned way. How monotonous. Oh well, Thanx