Apparently, the only two carriers that are in the "hunt" for this flying is Pinnacle and SkyWest. Both operate CRJ's, so they would have to bring on a new fleet if the 190 is in fact the airplane in discussion. I can't see any way that Southwest would farm out flying to a regional/commuter/whatever airlines. But hey, I am sure Unted, USAir and Delta guys never thought that the CR9 would be flying the MD-88 routes...