Jared Polin from FroKnowsPhoto has converted 8 CR3 RAW files to DNG for you to play with. Currently, no Adobe products support the RAW from the Canon EOS R, but that will obviously change closer to the ship date next month.
The RAW files are split between two zip files for you to download.
If you want to know once the preorders are live, just enter your email address below. This will not sign you up for any other communication.