Impress does a teardown report for PSP-2000.
http://pc.watch.impress.co.jp/docs/2007/0913/psp2.htm
The LCD panel is thinner, the motherboard is double-sided with WLAN and MemoryStick port integrated.
http://pc.watch.impress.co.jp/docs/2007/0913/psp2.htm
The LCD panel is thinner, the motherboard is double-sided with WLAN and MemoryStick port integrated.