Sony A7 and A7r reviews roundup (plenty of links and tests!).

Sony A7r and Leica M 240 Shutter Sound Comparison

Sexiness test: Sony A7r with mutliple legacy lenses at Pbase.
First impressions hands on comparing the A7 to the OM-D and 5DmkIII (Fotograf Stockholm)
HIGH ISO – Sony A7, A7r, Leica M and E-M1! (Steve Huff).
A7r is Rated to have the best picture quality of all full Format dslr and is therefore New picture quality reference at German Chip Foto Video magazin.
A7 test at Fotopolis.
A7 test at Itmedia.
Sony A7 test by Mapcamera and Yodobashi.
Sony A7r test by Yodobashi.
Sony Zeiss 35mm test by Yodobashi.

Specs and Preorders in US and Canada:
Dedicated Sony announcement page at Amazon US (Click here).
Sony A7r body at Amazon, Adorama, BHphoto, SonystoreUS. TheCameraStore Canada.
Sony A7 body at Amazon, Adorama, BHphoto, SonystoreUS. TheCameraStore Canada.
Sony A7 with 28-70mm kit lens at Amazon, Adorama, BHphoto, SonystoreUS. TheCameraStore Canada.
Sony RX10 at Amazon, Adorama, BHphoto, SonystoreUS.
Zeiss 24-70mm at Amazon, Adorama, BHphoto, SonystoreUS.
Zeiss 35mm at Amazon, Adorama, BHphoto, SonystoreUS.
Zeiss 55mm at Amazon, Adorama, BHphoto, SonystoreUS.
70-200mm A-mount at Amazon, Adorama, BHphoto, SonystoreUS.
Sony A-Mount to E-Mount Lens Adapter at Amazon, Adorama, BHphoto.
Sony A to E adapter with mirror at Amazon, Adorama, BHphoto.
A7/A7r leather case at Amazon, Adorama, BHphoto, SonystoreUS.
A7/A7r vertical grip at Amazon, BHphoto, SonystoreUS.
Sony W Series Battery Charger at Amazon, BHphoto.
Sony FA-CS1M Off-Camera Shoe at BHphoto.
Semi-Hard LCD Screen Protector for A7-A7r at Amazon, BHphoto.

Specs and Preorders in Europe:
Sony A7r body at Sony DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT,  WexUK, WexDE.
Sony A7 body at Sony DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT, WexUK, WexDE, Amazon UK, Amazon DE, Amazon FR.
Sony A7 with 28-70mm kit Sony  DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT, WexUK, WexDE, Amazon UK, Amazon DE, Amazon FR.
Sony RX10 at Sony DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT, WexUK, WexDE.
Zeiss 35mm at Sony DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT,
Zeiss 55mm at Sony DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT
Zeiss 24-70mm at Sony DE, UK, FR, IT, ES, NL, BE, SE, PT
Sony G 28-70mm lens at Sony DE, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO.

Asia:
A7r at Digitalrev.
A7 at Digitalrev, Amazon Cina.
A7 with 28-70mm lens at Digitalrev.