Jordan and Chris answered your questions!
Preorders:
GH6 at BHphoto, Amazon, Adorama. In EU at Fotokoch DE, Calumet DE, Foto Erhardt DE. WexUK, Park UK.
OM-1 at BHphoto, Adorama, Amazon. GetOlympus. Calumet DE. Fotokoch DE. Wex UK. Olympus DE, Olympus UK, Olympus FR, Olympus IT, Olympus ES. Olympus NL. Olympus BE. Olympus AT. Olympus CH.