iOS 8 slows all my devices (iPad 3 retina, retina and iPad mini iPhone 5s). The Apple Team already accustomed to updating their half, losing credibility. If we remember the software was why we paid a lot more money, and we were left with smaller screens.
My ipad 3 with ios 8 slows home button (2 seconds) to show home screen.
Multitasking (3 seconds)
Spotlight takes to load the images of the Apps
Transfer apps wifi with my smart TV no longer work
Safari takes twice to load.
Whattsapp lost the support of my conversations.
And ... We are still hoping to use two apps (at least) on the screen of iPad or iPhone.
If the new iPhone 6 will want to look at Samsung ... The option is to migrate?