How Apple could improve iCloud document management
To open a document that's stored in iCloud from an iPhone or iPad, you have to first open the app you used to create it. That, argues Steven Aquino, is why Apple should build a iCloud Documents app.(techpinions.com)
http://www.macworld.com/article/2061151/how-apple-could-improve-icloud-document-management.html#tk.rss_all
