Kiprun LD weighs over 300 gms and is heavily cushioned in the heel which is a hindrance to mid foot strikers; and then there is the issue of propulsion. As for the One Lite; they are light, nimble and come with just the right amount of cushion under the mid foot. The minimalist design might put off some beginners, but folks who've been running for quite some time could get used to it.
The Kalenji Kipruns have served me well. I've used several pairs over the last three years. The Kiprun LDs helped me bring my Marathon and 21k times to 3:50 and 1:43 respectively. I guess I'll just have to wait till mid Feb to try the One Lite in a 20+ km session and see how they perform. Based on the performance so far, I gotta good feeling that I'll trump my PB by a considerable margin, but let's not count the eggs before they hatch (OR some saying along those lines :p)