Derek Bach: If you investigate you will find that Panasonic manufactures Olympus flash units.
Yes, and most of Nikon, Canon and others. It is interesting that Panasonic has been slow to introduce top-level features into their own-brand flashes, but that (and the high pricing) has been going on for some time. It may have to do with supplier agreements, and/or protection of their contract design & manufacturing business. If they start to lead the market with own-brand features, the return (some increased sales of Lumix flashes) would be modest compared to the risk of having Canon & Nikon taking their business elsewhere.