Apparently the worldwide rollout of the iPod mini has been delayed, basically because Hitachi can’t make 4GB MicroDrives fast enough to keep up with demand.

As the pleased owner of one (silver, by the way, and I’d have gone for a nice dark gray if they’d made one), I’m not surprised. People who viewed it as a barely-cheaper iPod with much lower capacity were missing the point; it’s not cannibalizing sales of full-sized iPods, it’s capturing the demographic that wasn’t willing to buy an iPod at all, for various reasons.

And gadget freaks like me, of course. The mini is my third iPod, and I still have the second one, which now lives full-time in the car and makes long drives more pleasant. And I spend a lot of time driving, mostly by choice. When the next round of full-sized iPods comes out, there’s a good chance I’ll buy one of those, too, mostly because Apple supposedly has adopted the mini’s excellent controls to replace the unreliable non-buttons on the 3G iPods.

Note that the success of the mini also means that as soon as the demand is met, Hitachi will be able to flood the market with 4GB MicroDrives, and that’s pretty cool, too.