Based on what has been showcased to date, I have a a coupe of disappointments that do not seem to be cured in iOS 10 (at least, not yet): a) Being able to block a number -- as it stands in iOS 9, you can block a contact, but not a number. This is a pain, since it makes no sense to create a contact for those annoying telesales calls. There should be a choice between a number and a contact. b) Top row of launch centre is not configurable -- never needed to use "do not disturb", rotation lock and my Bluetooth is always turned off. I would rather have a toggle for mobile data, auto-brightness and VPN. c) Stock apps -- been beaten to death, but the fact that you can hide but not remove them is a kick in the teeth. d) Modal alerts -- certain apps seem to be very aggressive about triggering modal alerts, mostly when it comes to lack of data access they seem to desire. It should be possible to disable them on the iOS-wide basis. e) Incremental app updates -- anyone who has a few MS Office apps on their iDevices knows that every time MS update their just a little bit, it means 1+GB of app updates need to happen, potentially on multiple devices. A a few general shortcomings in iOS: f) Lack of enforced standardisation -- Apple likes to blow its trumpet about how unified and seamless its platform is, but until this week Netflix didn't have PiP in their app. That is almost 9 months which, for a major app, is huge. The likes of MLB At Bat had it same day. I can buy stuff on Amazon and check my Amex account with TouchID, but I cannot sign into Skype without my password. Apple needs to get tougher on developers so that features are released for the benefit of users sooner. It's no good throwing the toys out into the playground and saying "here developers, here is what you have to play with", Apple should take charge. Providing some form of authentication? Need to support TouchID. Doing video playback? Need to support PiP. Movie theatre chain app? Need to support Wallet and mobile tickets. You get the gist. g) Easier cleaning of cache for apps -- Apple refuses to bump the minimum capacity for an iPhone to 32GB, so those 16 gig models eventually fill up. So many apps store loads of, what I would consider, rubbish in their cache. For example, my Facebook app has 4 times as much data as the size of the app itself. Not saying that apps should not be allowed to store temporary data, but it should be possible to clean it up in an easy way (without reinstalling the app). h) WiFi sharing -- just as it is possible to use an iPhone's data connection, it should be possible to allow another device to piggyback on an iPhone connected to WiFi. For example, in certain environments, a particular set of login credentials allows only one active session (think hotels, guest wifi in certain companies), so it would be useful to have an iPhone as a hotspot for WiFi too. i) Stale apps in the App Store -- there are lots of orphaned apps in the App Store that have not been developed for years and still charge for their use. It should be possible to report apps to Apple that are dead. Not sure how it would sit with them, since they get a cut of every sale, but it will be for the better of the App Store. j) Social network and content portal integration -- currently, Twitter, Facebook, Flickr and Vimeo are sitting pretty in iOS. What about LinkedIn and YouTube? I will probably think of some more, but these should be enough to kick start the conversation.