The newest version of Mac OS X “Leopard” is out in the wild, but my Amazon.com order has an estimated delivery date for next week.

Not a big deal, but made me think: In today’s world of broadband and on-demand user behavior, why doesn’t apple offer a digital download option ? On top of it, it’s environmentally more responsible to do away with all the extra packaging, fuel costs for shipping, etc.

As far as expertise and DRM issues, Apple has the experience with it’s iTunes store and .Mac service to offer this kind of option and make it secure.

In the gaming space I’ve seen Valve‘s digital efforts evolve over the last few years into a really impressive offering. They have a service called Steam (gigaom review) which essentially allows you to purchase games and download them instantly. They also use the service to foster online gaming, do auto patching, premier game trailers, and fight against cheats. It was initally conceived because they had trouble with 3rd party distribution, and ironically today Steam is used as a distribtuion platform for other game publishers.

The other company that could also facilitate this would be Amazon themselves. They distribute music digitally with their new amazon mp3 store — so why not do the same for software ?