Frederico Viticci has written a very thorough IOS 8 wish list on improvements needed in IOS. The new and improved Macstories (v4) is a quality Web site with a bit of a misnomer because it includes IOSstories too and is a valuable resource for authoritative knowledge on Apple and related third party software beyond just the Mac. I really like the approach of IOS 8 wishes proposing solutions instead of writing complaints. A similarly effective approach has been done well by David Smith on how the App store could be improved.
Two topics that I particularly liked from Frederico’s IOS 8 proposals are the need for better photo management and inter application communication. These would have a huge impact in dealing with current difficulties with photo management and also empowering third party developers to enrich the platform by simplifying work flows.