Dead pixel problems on new PSPs?

sony pspThe cries have been heard, and there are many.  It seems Sony pushed those 1 million PSP out to the US a little too quickly, with reports are swarming in regarding units with dead pixels.  Some PSPs seem to have it worse than others: some have large groups of dead dots and even entire rows or columns.  The unit we bought last night had a big dead one right smack in the middle of the screen.  The folks at the Sony store were kind enough to replace our unit quickly and quietly, but reports from some online vendors are less promising.  We'll keep you updated as this unfolds.