Huh, apparently trying to set Shared Folders in VirtualBox has about a 50% chance of freezing both the Host and Guest OS on my machine.

Ultimately, I just went with tar-ing the binaries together and emailing them to myself as an attachment in gmail, which I then opened from the N900.

I appreciate your help in all this hawaii. (Actually, now that I've seen how easy this is, all I need to do is figure out how to send stuff into the auto-builder, and there's no good reason other than possible time constraints to not keep pushing the latest builds to devel, no? I think if and when I do figure out how to do that, I'm going to request to become the maintainer for the current aircrack-ng package, get rid of the aforementioned iw conflict, and do just that.)