Quantum Chess seems to be the new, next exciting chess variant, and it seems to have a bit of star power behind it. The Paul Rudd v Stephen Hawking youtube video certainly helped, and there have been a number of other celebs connected with it.
Over at Huffington Post AJ Steigman has a long interview with the creator of the game, Chris Cantwell. It covers a lot about the game, from its creation through to the underlying concepts, and has a couple of videos embedded as well.
So if you want to see what the hype is about (Kickstarter!) then it is well worth a read.