if you want to see some mapping on A500 :
Blitter Disaster / Storm
http://www.pouet.net/prod.php?which=14569
Cube'o'Matic / SPREADPOINT
http://pouet.net/prod.php?which=5849
or BlitterMiracle / BRS
http://pouet.net/prod.php?which=5853
BTW why not make "Stencil vector" like in Mental Hangover ? with some good maps it can look pretty nice.
@Proton : didn't know Virtual Intelligence / Horizon , i'll watch it
http://pouet.net/prod.php?which=19102