What is "so cool", is that it is now available to those that didn't have it before.
So it is not "ground breaking"... but even me, a technology geek never found the reason to drop the money on the dedicated devices to stream my audio to my stereo... Nor replace my DVD player with one that can do that.
Or purchase a computer just to sit next to my TV system, to use as a HTPC (and I have about 6 computers already in the house)... Nor replace my TV for one that had memory card slots on it.
So yes.. for some this "IS" cool...
Just like some people could give two hoots about dual buffers, caller-id on the screen (I mean that has been around for what 15+ years), and manual records, or Record HD via OTA... Every feature isn't for every person.