Niner, an industry leader in 29" bikes, has introduced the new 6.5" travel Niner WFO which utilizes a proprietary dual-link suspension. Looks promising to me though I'd be hard pressed to get rid of my Santa Cruz. Its interesting to see a 29er with that much travel offered since 29-inch wheels weren't originally intended for the type of riding that 6" travel bikes were designed to be used for. I'm open to new ideas though and it definitely looks like Niner has done their homework. Now if only someone would offer one up for a demo - i ride a 17.5".