Hi.. Its the ipod Touch copy with the 2.8" screen.
Ive opened it and checked. Its got a 4GB Samsung NAND flash. Not sure about the controller.. Cant locate it.
Ive tried s1fwx & s1res tools. both said no player was detected.

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PCB Shot

The QC Pass hints that its the controller, but i cant take the battery off.
Heres the shot of the memory chip:
EDIT:
strangely, when i hit "About" in the system settings it says this:
Ver: 00.00.0000
Date: 2007-11-21
Flash Mem: XXXX/4005MB
Card Mem: 0/0MB