I've created custom scenery files for KDYL (Doylestown) in X-Plane 10. You need OpenSceneryX in order to use this - get it here.
The taxiway layouts in the default x-plane were incomplete and on the wrong side of the runway. I've placed all of the correct taxiways, including the taxiways to the southeast of the runway. Likewise, I've added the hangars that belong over there.
Aside from accurate taxiway placement, I've added the bus depot on the opposite side of Leading Edge Aviation and I've added some offices on that side. I've also placed the long hangars near the main parking lot, the CAP trailer, the LEA terminal building, the Doylestown Rock Climbing Gym, the maintenance hangars, and the rental/transient parking ramps. Finally, moved the windsock and VASI boxes to the appropriate positions on the airport and I've added additional trees around the airport perimeter.
It's certainly not 100% complete and it needs some tweaking but I will update it occassionally. I need to work on some of the taxiway markings and I'd like to add some more of the surrounding buildings.
Download: KDYL (last updated: 6/10/2012)