As I haven't seen anyone else posting about it, I thought I would give my first thoughts on my new Samsung HMX20C.
It is a good size and weight and I think well made.
The shiny black back to the LCD view screen is finger print magnet of course...
It supports full 1920x1080 25p and I am using a 16GB SHDC, although it has 8GB built in.
I'm not a fan of touch screens in general, but it seems quite easy to use and the manual focus by touching the item on the screen you want to focus on is a good idea.
Stills seem good for a camcorder and the flash works well. Shame there is no optical image stabilisation and the EIS only seems to work for video.
The cradle is a bit of a pain, as the camera sits at an angle, which is why I tend to use the SD HC card in a card reader. Plugging in the cradle USB to the PC shows up as two drives (if you have an SDHC in the camera).
The HD video is really good, but plan on getting a new PC to edit it

I upgraded my HTPC to a Athlon X2 4850e and Asus M3N78 HDMI motherboard. Using Pinnacle Studio 11 Plus to edit HD video, the preview is a bit stuttery but playback in PowerDVD Ultra 8 is fine, as it uses the Nvidia PureHD video acceleration.
The last feature, which convinced me I needed to get it was the gimmick - 250 fps slow motion for a 10s clip. It needs quite good light and is just below SD resolution, but still quite impressive never the less.
Think of a Casio EX F1, but cheaper and better for video, but without the 60fps stills.
Don't make the mistake I did and get a BP85ST clone battery - you need the IA-BP85ST (which works in the HMX10)...
Overall very happy