[link|http://arstechnica.com/reviews/apps/delicious-library.ars|Ars Technica] has a surprisingly Mac informed review of it(considering they "serve the PC Enthusiast".)
Just as physical packaging makes an important first impression for hardware, so too can downloadable software packaging be elevated from utilitarian to a delight. On Mac OS X, the first test of quality downloadable software is this: does it come as a disk image, or is it compressed or packaged using some other standard? While StuffIt, zip, and even tar and friends are all technically compatible with Mac OS X, disk images combine the best features of all of them and have the nicest user experience.
...So let's see how Delicious Library stacks up. First, here's the disk image itself, after being mounted.
[image|http://arstechnica.com/Media/2004/11/5/disk-image-icon.jpg||Disk image icon|183|183]Yes, they've even customized the volume icon: a wood-grain theme with the clever Delicious Monster logo branded onto it. The disk opens to reveal a continuation of the theme.
[image|http://arstechnica.com/Media/2004/11/5/disk-image.jpg||Disk image|404|546]As is customary, the background image helpfully includes the "installation instructions" (if you can even call them that).
I'm pointing these things out not because Delicious Monster is unique among Mac developers in the quality of their artwork and their attention to detail, but because they aren't unique.
...Windows users, think about what your typical download and installation experience is like. How many dialogs are you presented with? What do the file names and icons look like? Do you have to run an installer? What kind of manual clean-up is required afterwards?
Linux users, when you look at the carefully laid out disk image contents in the screenshot and links above, think about how far "desktop Linux" has to come before it can even begin to think about details like how single-icon drag-installed applications are arranged in their disk image windows.