Disk images are one of the most confusing things about day-to-day Mac OS X use, no question. The next time you're at a relatively non-technical friend's house, apple-click on Firefox or Chrome in their Dock. Dollars to donuts, it resides on a disk image.
Apple got rid of disks, why not get rid of the images too?
Apple got rid of disks, why not get rid of the images too?