Sony PlayStation Portable review
The portable PlayStations were Sony at its most ambitious - The Verge
I just stumbled upon a rather comprehensive review of the PSP 3000 and it's pros and cons. : r/PSP
Customer reviews: Sony PlayStation Portable (PSP) 3000 Series Handheld Gaming Console System - Red (Renewed)
Review of the Month; PSP and PSVita – Aaltomies
Review: Sony PS Vita
Sony PSP 3000 review: Sony PSP 3000 - CNET
Sony Doesn't See Mass Appeal For PlayStation Handhelds Anymore
Sony PlayStation Vita Review: Full-Power Gaming, Portable Package
Sony Playstation Vita Review – The Geek's Office
PlayStation Portable 3000 Core Pack System - Piano Black : Video Games