As far as an improved version of the OS, I believe IT2006.2 is what they're going to use (a guess). In another thread on the developer mailing list there was some discussion of the significance of kernel changes mentioning a headset; one is included in the box with the "870". It would make sense to use a publicly-released version if the OS as this would allow the new device to use the same third-party software without changes. If the "870" is to be released soon (before Christmas?) they'd want to have a stable-yet-updated version of the OS on the shipping device. I imagine this was one of the reasons for IT2006.2 as much as bug fixes or other problems.

I don't know about anyone else but I'm going to be lined up to buy the new device! I've really enjoyed the 770 and plan on giving it to my wife when I get new device. Two memory slots on-board would be great! I love the changed positions of the charge/headphone connectors as well, since you can now listen to music with it in smaller pockets. Being able to use and charge it on a stand at the same time is sweet too.

Larry