A new version of the Game Boy emulator zBoy has been released. zBoy is available for Windows and Linux.
Quote: zBoy v0.52 [22 Apr 2012]
- added a GTK-based GUI,
- added a colorization feature that allows zBoy to render some games in color by using specially crafted palettes (following titles are supported so far: Super Mario Land, Tetris, Pinball Revenge of the Gator, Pac-Man, Asteroids, Dig Dug, Tetris Attack).