These crazy guys in France got their iPhone 3G S right away in order to . . . . disassemble it. I'm not planning on doing this when I get mine. They did, however, confirm some hardware specs while they were at it.
- CPU is a Samsung S5PC100 ARM Cortex A8 600 MHz, PowerVR SGX graphics
- 256 MB RAM
If for some odd reason you need a disassembly guide for the iPhone 3G S already or you just want to see more nice pics of the innards, head on over here.