Preorders:
Sony 14mm f/1.8 GM at BHphoto, Adorama, Focuscamera, Fotokoch, Calumet DE, Park Cameras UK, Wex UK.

German:

Spanish:

Dpreview published the full Sony A1 review.

The Sony a1 is the most refined Alpha-series interchangeable lens camera yet. Its combination of speed and resolution for both stills and video set it apart in a crowded field of excellent options, though that combination is also responsible for the price it commands. But the fact remains, most any professional photographer will be able to use the a1 for most anything they’d think to shoot.

Sony A1 at BHphoto. Adorama. Amazon. Focuscamera. FotoErhardt DE. Calumet DE. Fotokoch DE. Park UK. WexUK. Join the Sony A1 Facebook group here.

Preorders:
Sony 14mm f/1.8 GM at BHphoto, Adorama, Focuscamera, Fotokoch, Calumet DE, Park Cameras UK, Wex UK.

Albert Dros allowed me to repost his review here in full:

Preorders:
Sony 14mm f/1.8 GM at BHphoto, Adorama, Focuscamera, Fotokoch, Calumet DE, Park Cameras UK, Wex UK.

Reviews:
Full review by Albert Dros. 14mm GM product page at Sony.com. Review at Explora. Image samples at Dpreview. Review by Erick Hercules. Review by CameraLabs. Spanish test at Photolari. Review at Petapixel.

Video reviews:

Official product videos:

POLL:

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If I got this right: The new Canon EOS-R3 will have the same power as the Sony A1 (stacked sensor, 30fps), but likely less resolution (it’s a rumor os it may be wrong) and all that in a much bigger body? Yes I know Canon fanboys will hate me for saying that. But before you do the Canon definitely has superior IS and honestly, I like the R3 design a lot.

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via Camerasize

Move to Mirrorless:

Are you new to mirrorless photography or thinking of switching to Sony? This video is an overview of all the full-frame mirrorless cameras that Sony currently offers. Which is the best camera for video? How about landscape photography? How about sports photography? Which one is a good budget option? I compare all of the strengths of each camera to help you decide.

Sony A1 at BHphoto. Adorama. Amazon. Focuscamera. FotoErhardt DE. Calumet DE. Fotokoch DE. Park UK. WexUK. Join the Sony A1 Facebook group here.

Steve Dent from Engadget reviewed the Sony A1 and concluded:

To summarize, the Sony A1 is the most powerful mirrorless camera ever built, and it should be for $6,500. It’s also an impressive demonstration of Sony’s tech prowess, giving us a taste of what’s to come with its future mirrorless lineup.

But does it beat the Canon R5? The superior video and shooting speeds do give it a slight edge, but it would be hard for the average person to justify paying an extra $2,500 for moderately better performance. For another $500, you could also get a “hybrid” video and photo camera by purchasing both a Sony A7S III and an A7R IV.

The primary market for this camera is professional sports, action and wildlife photography. For that, the A1 has incredible speed and reliable autofocus, and the high-resolution photos are a huge bonus for cropping in.

Another valid segment is dedicated 8K video shooting. Because it doesn’t have the overheating problems of Canon’s R5, the A1 is actually feasible for that. If you look at it that way, the A1 is actually one of the cheapest 8K video cameras available.

More A1 news:
According to CAPA the Sony A1 was also the best selling mirrorless camera in Japan (March sales).
And this is a new video by Patrick Murphy-Racey where he conbines the A1 with SONY’s Xperia 1: