User:Quietust

Who is Quietust?

He is a former member of the NESdev community, though he still occasionally makes minor contributions to this wiki.

What sort of stuff has he done?

He wrote the NES emulator Nintendulator, as well as some simple NES demos.

He also traced out the RP2A03G die (excluding the 6502 embedded within it) and used the information to make an interactive simulator (based on the Visual 6502 project). His findings suggest that pin 30 enables 4 additional I/O registers at $4018-$401A, though these findings have yet to be verified against actual hardware.

He is currently in the process of doing the same for the RP2C02G, the NTSC NES PPU. Detailed status can be found here, along with status on other related projects.

Where can I contact this 'Quietust' person?

Your best bet would probably be to email him (@gmail.com). He can also be found occasionally on irc.freenode.net using the nickname "_Q".