You've got to feel sorry for UPS pilots though - there they were, thinking they'd got away with it - 757/767s, A300s and 747s, that was enough. Let Fed Ex have the '11s and they could bypass them. . .
I wonder how many volunteers they're going to have for conversion. As nice an aircraft as it looks (and I certainly can't wait to see them), I have yet to hear of a pilot that actually likes to fly them. Still, as a freighter, it does the job; Martinair is out, as all but one of its aircraft are now flown as freighters. Still, there is CAL, Thai, KLM (as you mentioned), possibly Varig and Finnair - all of which would no doubt relish the possibility of foisting their aircraft on some poor unsuspecting airline.
This isn't intended as a joke; many airlines operating the '11 would have concerns about their ability to get rid of the aircraft and this would have ramifications for their fleet plans; if they can't sell it, they might as well hold onto them. Now, with UPS expressing an interest, I'm sure they'd get quite a few approaches from airlines.