There is no doubt anymore. The official Sony Hong Kong website already published the A850/A900 firmware upgrade manual! Take a look at the screenshots at Dchome.
UPDATE: There is an english manual here: http://support.sony-asia.com.edgesuite.net/consumer/IM/ADWB100111.pdf
P.S:: Finally some real nice deals from Sony! The Sony A850
Click the direct shop links to buy the camera:
Sony A580 $100.00 Instant Savings at Amazon
Sony A33 $100.00 Instant Savings at Amazon
Sony A850 $100.00 Instant Savings at Amazon, Adorama, BHphoto.
Sony A900 $200.00 Instant Savings at Amazon, Adorama, BHphoto.
And here the detailed discount (Click on store name):
Sony 11-18mm f/4.5-5.6 DT Lens $50.00 Instant Savings at Amazon
Sony 16-80mm f/3.5-4.5 Lens $50.00 Instant Savings at Adorama and BHphoto.
Sony 18-200mm f/3.5-6.3 DT $50.00 Instant Savings at Adorama and BHphoto.
Sony 18-250mm f/3.5-6.3 $50.00 Instant Savings Adorama and BHphoto.
Sony Distagon T* 24mm f/2 SSM $100.00 Instant Savings at Amazon
Sony 24-70mm f/2.8 Carl Zeiss $100.00 Instant Savings at Amazon
Sony 28-75mm f/2.8 SAM Lens $100.00 Instant Savings at Amazon
Sony 30mm f/2.8 DT Lens $25.00 Instant Savings at Amazon
Sony 35mm f/1.4G Lens $100.00 Instant Savings at Amazon
Sony 35mm f/1.8 SAM Lens $25.00 Instant Savings at Amazon
Sony 50mm f/1.8 DT AF Lens $25.00 Instant Savings at Amazon
Sony 70-200mm f/2.8 APO SSM $150.00 Instant Savings at Amazon
Sony 70-300mm f/4.5-5.6G SSM Lens $50.00 Instant Savings at Adorama and BHphoto.
Sony 85mm f/2.8 SAM Lens $25.00 Instant Savings at Adorama and BHphoto.
Sony 135mm f/2.8 Lens $100.00 Instant Savings at Amazon
Sony 300mm f/2.8 SSM Lens $100.00 Instant Savings at Adorama and BHphoto.
