I don't know if anyone has seen this: http://marquette-backcountry.com/
I like the looks of these, and I'll probably get a pair. If you paired this with bindings that work with regular boots, then I think you would have a great system for the spring. We discussed this sort of thing last year, which inspired me to try and make a system like this. I wrote about my experiences here: http://tinyurl.com/2bhegrl
I failed at my attempt to make the bindings, but my brother created something much better, that he has used successfully. Basically, he took the Berwin bindings, put them on a block of wood, put a hinge underneath that, and put that on a regular ski (Atomic Sierra). He had to add a bumper to get the proper Nordic movement. He also added a latch, to lock down the hinge when going downhill. This still allows enough movement to make a telemark turn (because of the play in the Berwin binding) but less movement than the hinge.
Anyway, I think if you took that binding (or something that worked as well) and put them on this ski, I think you could tromp around in the spring and still have a lot of fun. With these skis, you would have less glide, but if your spring hiking is usually uphill anyway, it might not matter as much. Basically, they could function more like snowshoes going up, but more like skis going down.
I personally think they got it just right. I like the length. Any shorter and you really can't glide. Any longer and you might as well get light Nordic skis. The sidecut is about right, too (since the ski is short, I think it would be quite maneuverable). I also like the fact that it doesn't have metal edges. There might be times when I would want them, but I prefer the weight savings. Ski crampons might make sense, since you are more likely to get ice going up, and slush going down (if you use these in the spring). I like the pronounced tip. That should eliminate the "submarining" problem I had. I like the fish scale bottom; this is much faster than a permanent skin, but a lot more convenient than a removable skin. The only thing I question is the lack of camber. I would have some, just to improve the glide a bit. They might also be a bit wider than I need, but these were designed for winter, not spring. I could get by with a much smaller footprint, since the snow is quite consolidated when I intend to use these.
Of course, I need to get a pair and then try them out before making too much of a judgment.