I have no experience touring with a carbon fork, but I have experience with carbon forks.
Several years ago I was riding in a paceline, and ended up in a pileup at about 22 mph. I was third in line when the guy in front of me touched the rear wheel of the leader and went down. I rode right over his bike before going down. The carbon fork I went over had both fork blades snapped, hanging on by just the carbon fiber strands, and my fork was suspect.
The point is that carbon forks are relatively fragile compared to steel. Granted, getting your fork run over by another cyclist on a tour is not very likely. However, there are situations where touring bikes get handled pretty roughly. Carbon forks would probably be OK for the actual riding on a tour, but in my experience most bike damage comes from minor accidents, fallovers, and during bike shipment. My road bikes have carbon forks, but based on my limited experience, I'd be a hesitant to use them on my touring bike. If the airlines managed to damage a steel fork's dropouts, just imagine what they could do to a carbon fork
The Amtrak employee is picking up my bike box after it fell of the cart on the way to the baggage car
Regardless of what our these retrogrouches here are saying, you won't have any worries about using a carbon fork.
I'm not convinced that carbon is the "magic bullet"
