WWDC is officially less than a month away! Even if you didn't get the ticket, I highly recommend attending AltConf (FREE!) and there will be lots and lots of parties, which you can monitor as they start getting posted by WWDC Parties (iOS / WatchKit app here).
If you were lucky to get a ticket but haven't attended before, I wrote up some survival tips from my experience last year. Hope to see you there!
Swift Around the Web
Starburst - A collection of animated loading sequences for Apple Watch
DBPathRecognizer - Handwriting recognition in Swift
KFSwiftImageLoader - An extremely high-performance, lightweight, and energy-efficient pure Swift async web image loader with memory and disk caching for iOS and Watch.
HealthKitHeartRateExporter - A simple sample application for exporting heart rate samples from HealthKit.
SwiftCharts - Layers based charts library for iOS