The number at the end is just the region code, they are not upgraded versions, just ones made specifically for different areas.
the 3000 and 3001 are the same but the 3000 is japan, 3001 is US. the last one or two digits is just the region
There is a psp 1000, 2000 and 3000. The newest is the psp 3000
yes if you want to hack another psp you have to buy psp-3001
The number at the end is the region code. PSPs are region locked, but this applies to movies only, not games, a PSP from one region can play any region's games, but it may affect any online use. PSP-3000 is the general name for the 3000 series range, but '3000' specifically is the Japanese regional model, 3001 is North America.
the psp 3001 came out in 2008
They are virtually identical. The 3000's lower buttons are rounder, rather than semi-circular on the 2000. The 3000 has an 'advanced' screen, and a built-in microphone.
PSPgo is defiantly better and it is also newer
PSP 2000 is the second PSP Version also known as the PSP slim. There is a newer version called PSP 3000 which more things were added to.
the psp 3000 is newer because it is a bigger number than 2000 ( 1, 2, 3, etc.) they will continue to make bigger numbers. right now they have for the psp go. although it is the fourth version of the psp, it is not the psp 4000, but would have been if the entire design was noy changed hope this helps thanks!!!
the psp is thicker than the psp 3000 and there is other little things like the psp 3000 has a newer screen to keep the reflection off it and the psp has a built in microphone. you can use the original psp as a controller to practically anything. the umd case on the 3000 doesn't have a latch the wlan switch is moved the memory card slot is moved a little. the speakers on the original psp are on the bottom and on the psp 3000 there next to the screen. the psp logo on the back and on the front are different, and the big one for me is the fact you can hook the psp 3000 into the TV.
Actually you can play ISO / CSO in psp 3000. I've already tried this and it's perfectly working and also my firmware is 5.03, you cannot play on 5.50 . sorry pal :))
The psp 3000 to date (june 6th 2010) cant be hacked same with the psp go and newer slims. The reason for this is because of the motherboard. keep checking. You never know when someone is going to crack it.