![Image](http://oldschoolgameblog.files.wordpress.com/2012/02/aca123142.jpg)
- plug into expansion port
- new CPU (68020min->68060max)
- new RAM (16MBmin->4GBmax)
- MP3,MIDI,WAV,OGG encoder=no CPU time (http://www.vlsi.fi/en/products)
- new VDP (Yamaha V9990 or new in FPGA?)
- SD card (for OS and files)
- on board battery /realtime clock, RAM backup/
- audio mixer (SN+YM+MP3 encoder) -> audio out
- audio out / 2x cinch or 1x stereojack/
- video out /s-video?, composite?, vga?/
Or everything in FPGA? I am not HW geek... And this idea is crazy.
Anyways it will gives new HW upgrade scene. Take this topics as funny brainstorming!!!