1. Spotlight Search
Spotlight Search in iOS 8 provides app and web site suggestions as you type...
2. Spotlight Search
...as well as relevant Wikipedia article recommendations and much more.
3. Text messages in lock screen
If you get a text message in iOS 8, you can slide to the side straight from the lock screen and shoot a quick reply, or just mark the message as read.
4. Message notifications
Pop-up message notifications in iOS 8 let you quickly shoot a message back.
5. Voice and video messages
Users of iMessage can easily send voice and video text messages to one or multiple recipients.
6. QuickType prediction
The QuickType word prediction in iOS 8 intelligently suggests the next word you may want to input.
7. Third-party keyboards
And if the stock Apple keyboard is not your cup of tea, there will be alternatives in iOS 8.
8. Group chats get a do-not-disturb button
Yes, you can now mute group chats, or just leave, if you feel like it.
9. Location sharing in chats
If you're a part of a chat, you can easily share your location with the rest of the gang, for a period of time, or indefinitely.
10. Splash message notifications
iOS 8 adds an alternative iMessage notification, a-la Viber. With a quick reply option, of course.
11. Favorite contacts in the multitasking window
When you open up the recent app list in iOS 8, shortcuts with your most frequently contacted people will appear at the top.
12. Interactive notifications
The notifications in iOS 8 appear as a pop-up on top and can be easily discarded.
13. Siri meets Shazam
Siri has gained song recognition abilities in iOS 8, thanks to Shazam integration.
14. Notification panel
The notification panel now finally displays the weather with an icon, albeit a small one. And there's just one notification tab now. Oh, and what you see there are widgets. Yes, third-party widget support is coming with iOS 8.
15. Spotlight Search in Safari
The wonderful Spotlight Search feature has been brought over to Safari, so search suggestions appear along with Google recommendations as you type.
16. Request desktop site in Safari
In case you ever need to view a desktop version of a website instead of its mobile one, that's an option added in Safari with iOS 8.
17. Improved sharing menu
The apps listed in the sharing menu can be rearranged in iOS 8.
In the iOS 8 email client, a swipe to the left shows buttons for the "Trash","Flag", and "More" options, while a swipe to the right marks the message as read.
The iOS 8 camera app features a self timer and manual exposure control.
20. Time-lapse videos
The camera is also getting the so-called time-lapse mode, condensing long periods of time caught on camera into a shorter video.
21. Photo editing
The built-in photo editing options include better cropping, as well as manual color and brightness controls.
22. Parental controls
With iOS 8, kids using iPhones and iPads may ask their parents for permission prior to purchasing an app. That's part of the Family Sharing set of features.
The new Health feature turns an iOS 8 device into a personal health monitoring device. Third-party accessories are required to do the data collection, however.
24. Battery statistics
iOS 8 lets you take a good look at what app is consuming the most battery power.