Long story short I just got my Samsung BD-P1600 in the mail as I prize, it's not yet released but rumor has been pointing to a mid March.
It's my first BD player so it's kind of hard to know what to cover.
Little things I have noticed:
*Decodes both DTS HD and Dolby True HD
*The whole front flips down to reveal the disc drive and buttons (not a fan)
*Supports Netflix and Pandora
*There will be a USB WiFi dongle (USB port on front and back)
*1GB not built in for BD Live
*Ejects discs in 1 second
*Started a DVD in under 30 seconds
*Relatively quiet, though had sort of a whrring reading noise that would come and go like an old game console on the DVD I watched.
It seems to be a pretty modest step up from the 1500 model, please feel free to ask questions. I will try to answer them best as possible. Hopefully I will get to watch a BD movie soon, but I have a pretty busy schedule.
(BTW my current setup is a Samsung 32a450, xbox 360 w/ VGA, BD-P1600 w/ HDMI, and an Aiwa stereo. So nothing really amazing)