Leo,
It made sense to me. It has been done before. I happen to need a small 7 segment display with a brain. Sparkfun has even added it to the arduino boards manager so you can program whatever you like, Customizing the display.
Yeah I thought about starting a thread, but here was someone with the same chip (Uno=atmega328) with the same problem. So I thought I'll make friends. Maybe we'll help each other out who knows.
D.