Since each file is encrypted individually while being packaged into a volume, it doesn't seem too far fetched to enable Dropbox sharing of individual files. This is likely already possible, except for the problem of decryption on the other machine.
Hopefully this is on your future roadmap. I think your product is generally terrific, however, I would like to see all the features of Dropbox be available.
Currently, if I want to share a file with Dropbox, it cannot be within the protected volume. The only work-around I can figure is using two volumes, one for sharing and one for personal use. This is further complicated because once you move a file from one volume to another, the entire file has to be re-uploaded which can be insanely time-consuming.
Anyone else have any thoughts on this?