This year's entry-level Canon camcorders incorporate a higher resolution sensor than last year's--3.28 megapixels--for an effective video resolution of 2.07 megapixels.
The lens remains a 20x optical zoom, and the LCD display size has been bumped up to 3 inches from 2.7. They all have dual SDXC slots and support the new Touch Decoration feature for overlaying graphics on the video. The R20 will come in black, red, and silver. Look for them in Feburary.