Plates on skis have been around forever. The "new" snowboard plates that everyone is coming out with is really very old technology..... The plate I made a road last season was used on skis just after they started to use a side cut instead of a straight ski. the only thing different with a snowboard is there is no height restriction, YET. Ski plates do need to be alot more compact and low profile to be within the FIS hieght limits. The carbon fiber plate that Atomic had on their skis last year is the pretty much the exact same thing that Kildy made for the 24/7 boards as well as Tinkler made. Snowboarders used that in the '98 olympics. Hangle pates were made for skis long before snowboards to. So there is no question that plates are used on skis and 99.9% of the snowboard plates out there have just been taken from ski companies.