What does this mean? That you prefer having a SD card you can remove and use in a card reader over using a cable? Sure that's fine but to say that transferring files over USB on the GN doesn't work as well as [transferring files over usb on] phones that (also) support SD cards doesn't make sense.
Sent from my Galaxy Nexus using Tapatalk
For Windows users, it's pretty much a transparent non-issue.
For everyone else, it gets a little messy.
See, the SGN does NOT support UMS (USB Mass Storage), which is necessary to be treated like a storage drive, and for it to behave like one at the hardware level.
Windows supports MTP natively (Media Transfer Protocol), so dragging files between folders/drives appears to work as expected.
There is no write caching like on storage drives, so transfers might be a little slow. It seems like there might be less of a risk of corruption, since entire files are either written or read in one go, or not at all... but you also do not get any recovery tools through the computer.
With MTP, the device retains complete control of the storage medium at all times, and the device retains control of the filesystem itself.
Since their is no removal media on the SGN, and the "sdcard" partition is just that, a partition of the main storage and not a unique part on the device, UMS (also known as MSC - Mass Storage Class) is not possible.
For Mac users, it requires a little bit of work. I think something called Android File Transfer, or something to the tune, is required to get UMS to work properly.
For Linux, well... from what I read briefly when I got the Nexus... it looked like it could require a little more effort to get the ball rolling.
For most users, especially Windows users, it shouldn't cause any issues, and at most (especially for other OS users) it may require a little adaptation... but long-term should work just as well. Very specific usage scenarios may mean the SGN just won't work for some people, but I honestly cannot think of any.
There's a lot of detailed differences that I glossed over, somewhat because I don't understand the details/importances myself, and somewhat because most of the details I remember I already spilled out, and for the details I'd have to hit up google or wiki... and I'd pretty much be copy/pasting without actually copy/pasting