Digitalcamerainfo tested the new Sony Alpha 550.
You can also jump directly to the conclusions by clicking the link: http://www.digitalcamerainfo.com/content/Sony-A550-Digital-Camera-Review-21295/Conclusion.htm.
The performs very well!
P.S.: Amazon has the camera in Stock for $899.00 (Body-only)
UPDATE:
The is the first Sony camera since very long time to make it into the top 10 weekly japanese DSLR sales!
Take a look:
Source: http://bcnranking.jp/category/subcategory_0008.html