I watched one evening a small pile of different builds of a portable gamecube.
This by far is most pleasing to eye, and efficient as it has no reader sticking out. Nobody has come up with good COVERED reader.
Too bad that while this is good, it has too small of a internal memory card (should be at least 1000 blocks) and playing legal backups would be hard (you'd need to download the game you own as making a backup would need extra hardware you may not have)
Still, would hit it. Nice design, though I am more of fan using the original buttons and layout on controller.