The concept from KHE has been around for a while now..
IMO, i am behind it, it is a great concept especially to the dj/park/street side of the sport..
Especially when one of my friends has a 25/26" specific Ti frame that is mega awesome... The 26" fits really snug but too snug even as the chain stays are soo short that the tread of the tire rubs on the supports in the rear and if you buckle the rim, it hits the sides easily... 24" on it just seems wrong and doesnt feel right, cant run the chain stay lengths as short as you want either.. 25" is perfect i think for that style frame also..
I think it will be a big hit towards those who run BlkMrkt bikes also, as they are not suited to 24" wheels what so ever and are really only designed for 26".. The 25" may be quite popular for those type of frames for people that want a slightly shorter wheel base and a more manoverable bike...
Anyways, we'll see how it all pans out.. I know my friend will be getting them as soon as he's able to, so i'll be able to give them a good test out when he does