Quick question to those who downgraded, would you sacrifice the ability to play Homebrew and emulators and play games like the Grand Theft Auto game if they made you install a non Homebrew firmware.
Sony you can be sure are working to cover the holes in their firmware to stop exploits and it wouldnt be unheard of for a company like them to trace the hackers and pay the hackers to find aany exploits and fix them.
To answer my own question above, i think the time has come for me to buy a US PSP as thats the area with the UMD Movies i most want to watch.