I must admit, I have been away from the AVR Freaks grid for a while, and have been going back in time to the 6502 days!
But since AVR assembly is the best programming language ever created, I have been using an ATMega as a kind of surrogate as I test my new project.
Vulcan-74 is a HUGE logic based games system that generates 400x300 VGA, and includes a powerful GPU and sound system, all made from pure 7400 logic.
The final goal is to control the entire thing from a 6502, but I am using the AVR to simulate the 6502 until things are working.
Here is an in-depth photo blog on Vulcan-74, and how the AVR "stunt-man" is helping out for now...
Just felt like going old-school and trying something more challenging!