According to a recent eWeek article, Apple’s iCloud.com is now live but only available to registered developers. ICloud was touted as THE content repository for documents, photo, video, music, email and such at the June 6 Apple WWDC. This is a great way to share and synchronize all your content from your Mac, iPhone, iPod and iPad with each other - and have it secure, backed-up and available. This is certainly going to be a popular feature for all Apple devices.  What I am waiting for next is what it will take to actually build an iCloud App. As for pricing, according to articles in ZDNet and TechCrunch, the first 5 GB of storage are free and then you can add to that in increments:

• 10GB (15GB total) - $20/year
• 20GB (25GB total) - $40/year
• 50GB (55GB total) - $100/year

From the WWDC conference, full iCloud capability, including iCloud Storage and iCloud Apps, will not be ready until iOS-5 is available (due out in the Fall). iCloud certainly starts to put both Google and Amazon on notice that Apple is serious about the cloud and competing with them. [Source: eWeek http://www.eweek.com/c/a/Cloud-Computing/Apples-iCloudcom-Now-Live-Kicking-Off-Cupertino-Cloud-Push-441303/ , ZDNet, & TechCrunch] Note: The author owns shares in Apple, Inc.