I saw Kessler and Oxess boardercross-specific models, which are German and Swiss manufacturers. I also saw at least one Donek, from Colorado. Constructed with materials like titanal (and carbon with Oxess), these are high end boards at $1K+. The nose and tails on these are mimimized to cut weight and increase effective edge. They're stiffer and have a shallower, progressive sidecut than typical freeride boards. The boards are also cambered, but I'm not sure if the last few cm are slightly decambered or not like their full on GS counterparts.