i heard that some new psp slim are now unhackable so how do i know if its unhackable? is there any way for me to tell? i was thinking of buying from a friend who bought teh psp in euro untouched. it comes with only battery and a charger. dunno if it comes with a memory stick though the sticky said taht there were other easier ways to get custom firmware. so what method is the easiest and will i have to mod my battery too if i use those newer method?