A couple of 300mm PRO lenses are in Stock on eBay via Samys (Click here) and KenmoreCamera (Click here). Another bunch is in Stock at KenmoreCamera online store.
Reminder:
E-M10 kit priced at $399 is ruling the mirrorless camera ranking at Amazon US (Click here).
The new Panasonic Leica 12mm f/1.4 lens is in Stock at Amazon and BHphoto.
The GH4 is selling for $984 on eBay (Click here).
Leica 100-400mm sells for $1,599 again on on eBay (Click here).