Well here you go. I will try to check the thread Off and On to answer questions.

Increase in HDMI 1.3a Repeater Inputs across all models (Deep Color, xv-Color, CEC)
All models now feature Analog to HDMI conversion (Starts at $349)
Scaling on 19 series and higher (A-H and H-H)
Direct Access Tuning (104.1) begins on the new 2310CI
All models now feature HD Audio decoding from Dolby and dts
All models offer a Sleep Timer
All models feature Audyssey MultEQ, Dynamic EQ and Dynamic Volume
All Models feature New Dolby PLIIz processing
All Models have Source/Quick Select Power On
All Models have Quick Select the Remote Controls
All Models have OSD or GUI over HDMI
Networking w/ Streaming Audio/Photos with Rhapsody and Napster & Remote Access to start at 33 Series (which is the 2809CI replacement)