Which in itself would be worth a fair bit to me. I'm sorry that they decided to limit the Mini version at 24/96, though. I know you have to differentiate, but I don't think that was the place to do it.
In theory, Core Audio (the OS X audio engine) should be cool with anything up to 24/192. In practice, sometimes things get a little weird.
And high rez files tend to sound very, very much like the source they were derived from. Ping me when you get home. I have some samples you may enjoy.
Yes.
(See user title)
Oh all right. Quit iTunes. Type "audio midi setup" in Spotlight. Open Audio MIDI Setup. Select desired sample rate in the Audio Output dropdown menu. Close Audio MIDI Setup. Open iTunes. Play back your high rez files.