Not much left to tell here that you didn't already know. Still, now that the EOS 50D
is official, we can list the specs with certainty: 15.1 megapixel APS-C sized CMOS sensor, DIGIC 4 image processor, up to ISO 12800 support, 3.0-inch LCD with face detection Live View, HDMI output, 6.3fps burst mode, and same AF system found in Canon's 40D with new Microadjustment feature. This DSLR targeting the "advanced amateur" will be ready for the holidays (shipping in October) for an estimated $1,599 with Canon's EF 28-135mm f/3.5-5.6 IS USM zoom lens -- $1,399 for the body only.
Official: Canon's 15.1 megapixel EOS 50D with DIGIC 4 processing
[Thanks, Phil W.