I recall years ago accessing my iPod from the terminal on Mac OS X when it wasn't in disk mode. In other words, IIRC, the iPod mounted in a non-standard place in the file system and was visible with "ls -la" in the terminal. I was going to try to verify this with my iPod, but I can't remember where it mounted and I can't seem to find anything about it on the google. Does anyone remember anything about this? And more importantly can you find the iPhone mounted anywhere while you're synching with iTunes? That would be an amazing find (3d party Apps anyone?

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To follow-up on my own question, I played with my old iPod synching with disk mode turned off and here's some leads that iPhone owners might try. These instructions involve working with the Mac you use to synch with your iPhone for those comfortable with terminal.
1) launch Terminal.app
2) run the following terminal command:
ls -la /dev > ~/Desktop/unmounted.txt
3) Make a lot of changes to your synching playlists or add a feature fil or something like that to give yourself some time while the iPhone is synching
4) Then plug in the iPhone and let it sync
5) while its syncing run the following terminal command:
lf -a
This should list all of the mounted drives on your computer no matter where they're mounted.
6) you can then run:
ls -la /dev > ~/Desktop/mounted.txt
The difference between this file and the previous unmounted file will show the name/id of the iPhone disk and its disk partitions (you can use FileMerge if you have developer tools installed or just eyeball it).
Unless Apple's is getting very tricky, these commands should tell us a lot about how to manually mount the iPhone for an unofficial Disk Mode and a peak into the filesystem.
Again, Apple could be doing some tricky stuff and none of this would work, but my hunch is they're not (if I had an iPhone i'd just be reporting to you what the outcome of this experiment is).
Anyway, with the mount command (check man mount in the terminal) once can look up the differences between the two Even without this last step of using mount, I'd be curious to find out what any of you can learn.
Happy hunting.