Updated my PMD706 with the new V1.23 firmware and did a few tests. Ran through the menus and didn't see anything new and the UI looks the same.
I started with a 2G card that I didn't care about and formatted it in the deck. I recorded 3 ten second stereo files with only a USB battery attached. During the third file recording I pulled out the USB plug from the input shutting down the deck while recording.
I took the card out and put it in my computer and it opened right up. All 3 files were there.
The first two files opened up in CD Wave Editor as expected.
The third file that I pulled the plug on listed "File header reports a size that is different than the system reports. Do you want to adjust the size?" so I clicked yes and it opened up the file just like it should have. It played and everything seemed fine. Clicked no the next time and it still opened fine. The header is corrupt but the file and all the data is there.
Looks like in my limited test they have fixed the file save on accidental power down problem.
It only took a year
I'm going out for a while to do some Christmas shopping so I'm going to let the deck roll past the 3:39 time that people were having problems with to see if they addressed that one too...