It would be really cool to read interview with the authors of other great emulators of the era too.
My personal favorite was NO$GMB ("nocash gameboy"), which was written in x86 assembly for DOS and allowed a 33MHz 486DX to emulate a Gameboy Color at multiples of full speed. Just the interface gives me waves of nostalgia :)
The author, Martin Korth is suprisingly still very active in the emulation scene [1], and still lives the life of a starving artist. Interesting guy and great programmer/reverse engineer.