I've just noticed that Apple has released iTunes 7.2.
This is an important release of iTunes because it supports DRM-free iTunes music(also known as iTunes Plus - the "Plus" is for the extra 30 cents "piracy tax" that you'll have to pay for these tunes).
I can't see any iTunes Plus tunes currently available for purchase but I expect these to follow shortly.
Is Apple onto a winner with iTunes Plus? I'm still skeptical about the demand for DRM-free tunes, especially given the added premium. I guess time will tell.