Don't think of iCloud as the new MobileMe; think of iCloud as the new iTunes,  John Gruber stated on his tech blog, Daring Fireball on Sunday. While the report is unverified, Gruber is generally considered well-connected and reliable in predicting Apple's moves.

Gruber suggested that the iCloud service could replace iTunes in its role of storing all the data; audio, movies and TV shows, iBooks, apps, calendars, etc. In the cloud space, the data would be better served synching over air. In addition to replacing iTunes, iCloud could possibly displace MobileMe, the cloud-based service that stores data that iCloud could too, according to Gruber. With iCloud, users can setup new iOS devices just by logging into their iTunes account.

Apple may offer portions of the iCloud service free to Mac owners who upgrade to Mac OS X Lion, according to Appleinsider sources. Some music industry insiders suggested that iCloud will incur an initial free period for iTunes Music Store customers, but eventually will move toward a $25 yearly subscription fee.

Apple CEO Steve Jobs will deliver the keynote address today at 10 a.m. at Apple's developer's conference WWDC kicking off in San Francisco's Moscone Center. The much-rumored and expected iCloud will be unveiled there.