Any advice on an L bracket for a GH3? It may be a while before RRS comes out with one (or even if). In any event I thought I'd try a generic L so I don't have to buy a new one for each new body. I see 2 options: Arca Swiss, or Acratech. I'm leaning towards the Arca since it seems a bit smaller than the Acratech. I think a generic L might be a reasonable option - I think I could have the vertical arm (in landscape mode) on the right side so the screen can easily pivot. The RRS for the GH2 was "OK" but the screen did pivot into the vertical arm. The Acratech would be easier to remove for handheld though.
or even the Kirk, or Jobo have something similar.