PSP model confused

[valleoliver]

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Mga banggiitan og PSP, im planning to buy a PSP but i don't know what model should i buy?
I am really confused about the model numbers of the PSPs, do they can play the same games? can somebody help/tell me what are the difference of these PSPs and please sort them to latest to oldest. Thanks in advance

[glad011]

trejan.com - Sony PSP

if interested ka

PSP 3003 from UK selling it 9k..barely used good as brandnew..1 month old..black color with screen protector since day 1..OFW version 6.30..not hacked to play cso/iso games..4gb memory card included, wall charger, data cable, UMD games (Tekken 6 and Harry Potter and the Half Blood Prince), case

text me if interested 09325244628

[brandnewbien]

nindot ang psp2000 bro k stable and firmware, slim and lightweight. contact me if you want to buy 093253361716

i have all kinds of units