I think you have a massive market interest on FB Andrew. I just dont think you have found the right way to tap into it. Creating your own Social Network is like living a dream - thats why dolphin (dispiteits faults) is so popular. There are many on FB that want that dream - you just have to find the correct way to sell that dream to them.
:) True. At the same time we're working on changing direction somewhat, as we want to provide something that turns dreams into reality in much more cases than Dolphin does right now.
Just my 2 cents.