It does seem like it's more contagious than the official "not contagious until symptoms appear" story.
I am not sure of the source, but I think is was a Dr. from Tulane that had returned from Africa that said he had talked with many of the healthcare workers that came down with Ebola. He said that they could not identify an incident (torn glove, needle stick, etc.) when they were exposed.
I suspect it is not “airborn”, but the high pressure spray cleaning causes micro droplets that get inhaled during clean up.
Worth reading, imho. Monotreme has done some good write-ups on infectious diseases in the past.