I don't think Surface is exactly the first to do it though. Two other skis that come to mind are the Spoons and the Paddles. Both had convex bases. I'm sure there were a few before the Lab series and those two mentioned ski as well.
And while they do make for some sick park skiing they will get squirelly at high speeds and you can't base grind these things. I'd also be super freaked out about coreshots, especially on a rail since you wont have an edge leading or trailing the base as much. Devils advocate and pros and cons.
secret fucking SNOWBALL mission...
Chaitea, "The best gloves are mittens."
Park Guy, "Everytime it snows my dick takes a beating."
I don't have a link to it, but I remember that edit, it changed the way I thought about skiing. They're destroying the park on hellbents with their hands in their pockets. Not a technical trick showcase by any means, but the dirtiest style I've ever seen, it looked so fun.
This is not equivalent to having no edge, there's still an edge. The difference is that the edges become active when you roll the ski over to carve or slash, but when the ski is kept flat they don't catch.