Although a failed product commercially, the innovative, candy-shelled design of the G4 Cube brought attention back to the Mac after many loyal Mac users had begun lounging about the PC pool, pondering a dip. As a group, designers often chose products that reflect their design aesthetic and the G4 Cube brought many of us back into the Apple fold, if not for the Cube itself, at least for what it represented — the power of design to inspire innovation.
Likely influenced by then-Apple competitor Steve Jobs's NeXTcube, the G4 Cube had a unique appearance, even by Apple standards. But functionally, it had more in common with traditional competitor PCs than all-in-one Macs: modular components, upgradeable platform, and external monitor. But commercially, this was a failed attempt at trying to give users the best of both worlds.
For many electronic products, the internal parts and function don't necessarily dictate an external form factor, so there is some latitude to have some design fun and make a styling statement. A cube form factor is not that original, but what is most striking about this design is the use of an acrylic outer skin that creates a sense of visual transparency for the product.