This story has been brewing since early this afternoon! Dark_Alex and Mathieulh have released a working downgrader (downdater) for PSPs running firmware version 2.71! QJ.net has all the information you need! I'm sure now it's only a matter of time till we see a downgrader for 2.80 firmware. I can almost hear those Sony engineers uploading the 2.81 firmware to the server... Via QJ update Here is the link to the original release site.