Just picked up my PSP-1002K with the midnight launch here in NZ. After putting its Hori screen protector on, I've fired it up and yes, it has a 1.52 firmware. NOT 2.0!
So, if the downgrader gets released in the next day or so, those folks with a PSP-1002 (Which all the Euro/Australiasian ones are I believe), will be able to go to 1.5 and enjoy homebrew.
