QUOTE
Let's assume that anyone shelling out $1,800 for the MacBook Air is already wedded to an iPod. Unless an external CD/DVD drive is purchased ($99), there's no longer a reason to buy music CDs. They won't fit anywhere. Instead, Apple suggests you mosey on over to the iTunes store and make your purchase there. Oh—and that Netflix account? Forget it. Their pesky DVDs will soon seem as ancient as 5.25" floppy drives. The iTunes store will now rent movies, and there's no need to worry about a scratched disc, or missing envelopes, or waiting for the mailman.
Remember (if you have seen the Keynote) that Jobs mentioned the reasons why the CD/DVD drive is used.
When they ended up at the Audio/Movie reason, he clearly said that they have iTunes for that one now.
Although I know what the guy in the interview is saying, the thing he's mentioning is not something like you have to be a well experienced market specialist to figure that out.
Steve Jobs clearly mentioned iTunes for that purpose during the Keynote
QUOTE
But more importantly, its aesthetic appeal allows for the precedent of no CD/DVD drive in a way that advances Apple's hold on digital media.
To my feeling, this editor wants to sound "smart" on something that has been noted anyway.
Off course Apple want you to use their service, but remember that there are (still) more download services available for Music and movies, other then iTunes.
People still have the choice (as it should be anyway).
I've also throught that cd drives aren't too necessary anymore, but there's an article here:
Minyanville article that says this is Apple's move to push everyone into downloading music and movies from now on.
Back in 1998, when Apple introduced the original iMac, Apple decided to dump floppy drives and pushed the USB technology. We all survived well without floppy.
Not so fast! I was using floppies and zip disks (mostly the latter) until last Christmas!!
With an external reader probably Gregg 
That's what Antony means (to my understanding).
You can still keep on using CD's and DVD's on the MB-Air when needed, but you'll need to get an additional external reader(/writer) for it.
So the idea is that in a certain amount of time, people will use CD/DVD's less and eventually (or that's what Apple is gambling on) Wireless will be so common and Wireless Technology and Software will be so advanced that we really don't need much of extra hardware to work on our computers and do whatever we want to do.
In a way it's not really that comparable with a floppy drive, because it has to be said that Apple did dump the floppy but they did introduce the CD.
So there was still a medium to use, just a different one while now, the MB-Air does not have a build in medium anymore (then off course the HD itself).
I guess depending how you look at it, Wireless might be also a medium... but I feel it's more a channel to get to a medium...
