One of my best friends, now living in the US, has come back home for a couple of weeks break.
With him he brought his two week old brushed blue metal iPod mini

I know some Applecentres in Australia have these on display, but I got to borrow his all day today.
First impressions were how solid and stylish the metal casing is, even though it's only 1/3 of the size of a cigarette packet. I can't see this case being scratched easily, unlike the shiny and slightly malleable plastics found on normal iPods. And the blue definately looks better in the flesh - not a pastel hue as Apple's official site indicate.
It uses the same dial control as the newest normal iPod, it's a little smaller but just as usable. The backlit display wasn't too bad either. Sound quality is as good as, if not better IMO, than the normal models, and it comes with the same decent quality headphones. Noise-wise, it's still very loud, and you can only hear the tiny hard disk spinning if you try listening, hard. The battery lasted for about 7-8 hours, and it didn't take long to charge from the Firewire cable.
Copying from a Firewire-400 equipped machine under iTunes seemed pretty slow; not sure if this was a driver/software issue, but it wasn't that bad.
All in all, I might look out for one when Apple can finally deliver them down to Oz, although the initial price turns me off somewhat.
JB