0okm has just found a new motherboard hardware version, dubbed TA-086. This new standard applies to all Pink PSPs, and potentially could effect downgrading/homebrew capabilities.
Here are some photos:
Additional Information:
PCB Ver. : TA-086
CPU Core : CXD2967GG
Media Engine : CXD5026-203GG
MCP : K5E5658ACM-D060 1.8V/1.8V
[Source]