With Creative Suite CS6 officially released today Adobe have lifted the lid (or cloud?) on Creative Cloud. The latter is a subscription service for CS6 apps, pay per month or annually from $19.99/month. Like the Apple App Store now Adobe can offer their dominant suite of apps via the web. You will still be able to (pre)order CS6 the traditional way including from your favourite brick and mortar shop.
As you would expect Creative Cloud offers cloud storage but Adobe also has cloud publishing for distributing websites and content.