If you're an iPhone or iPod touch user who's been clamoring for the arrival of iWork on your device, you'll be happy to know that Apple has released updated to Pages, Keynote, and Numbers that not only function on the iPad, but also on Apple mobie devices:

“Now you can use Keynote, Pages and Numbers on iPhone and iPod touch to create amazing presentations, documents and spreadsheets right in the palm of your hand,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “The incredible Retina display, revolutionary Multi-Touch interface and our powerful software make it easy to create, edit, organize and share all of your documents from iPhone 4 or iPod touch.”

The apps are universal, so if you've already bought any (or all) of them for your iPad, there's no need to spend any more money. Just update the apps, and they'll install on your iPhone or iPod touch through iTunes, or you can download them directly from the App Store on those devices at no additional cost.

The most interesting thing about this? iWork for iPhone was supposed to be released at WWDC this coming Monday, but it got released early because Apple didn't have enough time in the keynote to cover it. That must mean something else just got a higher priority. We'll see on Monday!