People who know me have said I'm one of the most patient people on the planet, while others that know me say my patience is really just a form of extreme laziness. Birger did manage to break my patience at the end of June. I started looking into putting a T-Mount lens onto my camera as an interim solution (a somewhat hideous 500mm mirror lens), but I couldn't find a PL to T-Mount adapter.Lowkus, you are a patient man. Even without a lens I would have powered it up, gone through all the menus, learned as much as possible without actually being able to see an image.
Seriously, consider an alternative in the short term if you can. The images you'll capture we'll make it worth the inconvenience of waiting for the Birger. And when it does ship, you'll have some good experience under your belt with the camera.