Those are awesome! If I had an iPod and a broke gameboy I'd ask you how you wired it, but alas, I have neither. But if you have a wiring diagram, maybe you could post it, I'm sure other people would like to know what you did.
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__________________ 15" MBP late 2008
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>Mac mini PPC / 1.42 Ghz / 1GB RAM / 74.41GB 4200rpm 2.5" / Airport + Bluetooth / 10.4.7 / 20.1" LG widescreen >G4 400 PPC / 20 gig / 768MB RAM / ZIP drive / 10.4.7 /17" apple SD / Back up system >Powerbook Titanium 1Ghz / 40GB / 512MB RAM / mashed up and waiting for a good mod! >Macintosh SE/30
This is indeed very cool. If you were to really hardwire the iPod into the GameBoy, you could add an extra battery for extended battery life. It would also be cool to use a 3G iPod instead of a 5G, so the screen would look really retro.