I downloaded the $3.99 Gameboid from the Market on my Moto Droid.
I put the gba_bio.bin file in the root folder. Then I put 5 gba roms from DopeRoms & Romulation in the root folder as well [Golden Sun 2, Pokemon Emerald, Metroid Fusion...]. I started Gameboid, located the gba_bios.bin & hit Load ROM. I selected Metroid Fusion and Gameboid instantly crashed & I was taken to my home screen.
I've downloaded & re-installed 3 different gba_bios.bin files. I've now tried 15 different roms from 3 different sites. I've even uninstalled Gameboid & re-downloaded through Market. Every single time I startup, hit "Load ROM" and select ANY rom, it crashes to home screen.