8x8x8 multiplexed LED cube with an Arduino Mega 2560

No, not yet. I expect to do it sometime in the next 2-3 days. Don't worry, I'll let you know what I find.
The reason why you don't see the ghosting in this video is that I've fixed it in the software by adding a 100 microseconds delay between turning the previous layer off and turning the current layer on. The hardware solution appeals to me more, so I'll definitely try it.