Think different… If the below speculation is accurate, I expect Oracle Cloud Office will be at least as successful as, say, Oracle Collaboration Suite (for which nobody has even bothered to update the related Wikipedia page, to note its demise…)
The Cloud Office Suite was first announced in January 2010. However, Oracle has highlighted the platform of the product more than the product itself. The Cloud Office Suite will use Java FX - Sun's Rich Internet Application (RIA) platform - a closed Java scripting language for developing web based applications and user interface.
Google Docs uses AJAX platform and also Microsoft's Office Web apps - its browser-based Microsoft Office. In a way Oracle is championing its new JavaFX platform rather than the end product itself.