To all you 29er's out there!

Sounds like road tubeless is coming along nicely too now. Latest Shimano rims are tubeless compatible. Apparently you run them at slightly lower pressure than tubed road wheels giving softer ride but they are still have lower rolling resistance than normal wheels and are faster.

I would say there is a lot more to gain by going tubeless offroad. But then I run latex inners on the road to get the best possible ride (probably very small difference), so going inner-less has its appeal.