Let me be another one to chime in on this one.
Apple, you've pretty much won the war at the consumer level, not it's time to pay attention to people that use you for work.
All of the marketing behind iCloud Drive was to present this as a "Dropbox" alternative. Which is why I bought additional storage before upgrading my IOS devices, set everything up so that I can see the iCloud Drive app/icon on the web site and thought all is good...
But voila... No icon in IOS 8, same old same old concerning the filing system. Nothing near a "Dropbox" alternative... For business people like myself this is a must have as my plan was to keep everything within the Apple ecosystem, but at this point I can make use of this on my iPad or iPhone.
Hopefully someone from Apple will chime in here soon and say this will be addressed. If not I guess we are all going back to Dropbox or OneDrive...