I'm still waiting on my iPhone 6. I actually got a 6+ for testing, since it is the most different from my current iPhone. To be honest, I've been pretty slow to upgrade because I have small jean pockets.
However, last week, I met with @heymarcbrown, the organizer of the Swift Brooklyn Meetup, who's been using an iPhone 6, and he mentioned that he now expects all apps to have swipe-to-go-back functionality.
While iPhone 6 might not seem like that big of a change from iPhone 5, it actually is a substantial change that requires us to adopt new user interactions in our iOS apps. Just adding auto-layout to an iPhone 5 app is not enough.
Swift Around the Web
adaptive-tab-bar - AdaptiveController is a 'Progressive Reduction' Swift module for adding custom states to Native or Custom UI elements
SwiftTask - Promise + progress + pause + cancel, using SwiftState (state machine).
MIBadgeButton-Swift - MIBadgeButton is badge button written in Swift with high UITableView/UICollectionView performance.
DTIToastCenter-Swift - A toast center for displaying quick toast to the user.
Slidden - An open source, customizable, iOS 8 keyboard.