The official news comes from sigma.jp

For comparison only, the Canon version costs you $399.99 at amazon.

source: http://nedbunnell.blogspot.com/

Both companies want to fight hard against Canon and Nikon in the digital camera segment.
Following article talks about their financial situation:
“Sony Can’t ‘Breathe’; Samsung Profit Surges as Yen Strengthens” (source: bloomberg)

Sony Strengthens Retail Distribution Channels Via Sony Retailer Network (source: imaging-insider)
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Sony Cyber-shot DSC-T90 Review at cameras.about.com
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Latest all-weather camera bags from Lowe Pro (source: cnet)
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Sony Alpha DSLR-A230 tested by a polish website (optyczne.pl). And here the google english translation.
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plusd.itmedia.co.jp tested the Sony Alpha 550. Read in japanese or google english translation.

Sony a850 vs. Nikon d300 noise comparison (source: dpreview forum)
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Sony Japan says the 28-75mm F2.8 Lens will be released on November 12. Read the announcement in japanese or google english translation.
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Hands-on of the Sony A550 made by a japanese blog. Read their impressions in japanese or google english translation.
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The Sony Cyber-shot DSC-H20 gets reviewd by cameralabs!
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Ask Sony what you want! At alphamountworld.

With the latest firmware you can lock the exposure on the focused subject, when the metering mode is set to Center Weighted or Spot.

Click here to download firmware v1.10 for DSLR-A380, DSLR-A330 and DSLR-A230 (Mac)

Click here to download firmware v1.10 for DSLR-A380, DSLR-A330 and DSLR-A230 (Windows)

Almost every photography blog seems to focus their news on the newly released Olympus E-P2 camera. Anyway we expect other camera manufactorer to release similar cameras on early 2010. And Sony surely is working on it!