For the full story, click here to read Chris Foresman's article in Ars Technica.
Apple has an online video tutorial that highlights its ease of use.
Especially brilliant is its ability to share iDisk files with others by sending them an email link, with optional controls for password protection and time limits for file accessibility.
Now there's even less reason to bring your Apple laptop with you when traveling on business. Before you leave the office for your out-of-town meeting, just upload your presentation files to your iDisk and access them...or share them...right from your iPhone.