I like this thread, it makes me look forward to buying a D100 when they come out. I am upgrading from a Zoom H4n, and it more or less came down between getting a Sony D100 or a used Sound Devices 744T. I figure the D100 will be a more flexible portable recorder, even if I have to buy a small mixer for some uses (maybe a Sound Devices USBPre2 or MixPre-D to provide external XLR mic capability for the D100, and also to act as audio interface to my Macbook - the H4n does that now).
Too bad Sony didn't equip the D100 to also play role of USB audio interface (as the H4n does). I suppose that means that if I want to record using D100 mics onto DAW software on the Mac, I'll need to do so via a USBPre2 (or keep using my H4n)? The D100 will be more for field recording - what will be the best way to copy the recording files to the Macbook for editing etc.? Mine is the recent MBP which did away with audio in port, so it has to go in via USB. Alternatively, I suppose files can be copied by inserting the D100's SD card into the Macbook.
Anyway, I'm still sorting out how the D100 will fit in with the rest of my gear, as you can tell...