I wish I could find the Twitter links, but even though I've spent quite some time looking, I haven't found them again. Nonetheless, modern French NES devs have created a cool option for new-school NES game developers. That is: playing new, homebrew'd NES games in real-time over the Internet using Wi-Fi! The tech currently connects to the second port of the NES's Control Deck that would normally be home to Player 2's controller. Using Wi-Fi, 2 people can play an NES game over the Internet whether using a Famicom or an NES or an NES 2 or a compatible clone. The devs believe they can even eventually reduce the hardware needed to do this down to fit within the NES game's plastic shell itself, leaving the controller port free.

If anyone can find any links about this (they are from this year), I'd really appreciate it!