Dpreview posted their very short A850 review (4 pages only). There is not much to say. Conclusions are very similar to the one written for the Sony A900.
P.S: You can order the Sony A850 using following links Amazon
One month ago in many forums people started to say that Sony could release the long expected firmware for the A850 and the A900. We didn’t hear anything form our sources so we posted the “rumor” with a low value “SR2=from unkown sources”.
What we post now is a rumor from one of our trusted sources. The Sony A850
I really hope Sony has been able to address all the critics we read in the forums during the last months!
UPDATE: I have no details about the new firmware. I was only told that it will be a “major update”.
Digitalcamerarview just posted their latest Sony A850 test. If you read the pro and the cons list you will not find any surpise. The Sony A850 has an excellent resolution and dynamic range and has a not so exciting High-ISO performance.
Click here to read the review: http://www.digitalcamerareview.com/default.asp?newsID=4186&review=sony+alpha+dslr+a850
Click here to check the current price on Amazon: Sony Alpha 850
I checked a little bit around and I found three brand new reviews:
Sony Alpha 850 DSLR Review at digitalphotographyschool.
Field Test Review: Sony Alpha A550 at Ferdzdecena (via noisycamera)
Sony DSC-TX7 Review at eCameraTalk
P.S:: Amazon has a good deal on the “old” Sony Alpha A230 with 18-55mm Lens ($407)
WhatDigitalCamera.com just published their very new Sony Alpha 850 review.
Check it out!
I made a check up of the current prices of the Sony A850 (Body Only). In USA we don’t have any price difference. Then cheapest price in Europe is form Amazon germany:
USA
Amazon: $1,999.00
Adorama: $1,999.99
BHphoto: $1,999.99
Germany
Amazon: 1.599 €
Pixmania: 1,631 €
UK
Amazon: £1,499.97
Pixmania: £1,519
France
Amazon: 1.679,00 €
Austria
Pixmania: 1.704 €
Spain
Pixmania: 1.739 €
Italy
Pixmania: 1.714 €
Holland
Pixmania: 1.689 €
Belgium
Pixmania: 1.719 €
Suisse
Pixmania: 2.911,33 CHF
Poland
Pixmania: 7.282,06 PLN
‘
and 
cameras. Sonys new firmware will reduce the noise level at Low and High ISO.