We're probably about a month away from an iOS 8/Yosemite release right now and it's possible we'll see a "1.0" of Swift from Apple at the same time. Obviously development of a language is never done, but what is a 1.0? Erica Sadun investigates and speculates.
Back at WWDC one of the most impressive uses of Swift playgrounds was the Balloons demo that was demoed in the Keynote. The playground file from that demo hadn't been released publicly until now but here it is, updated and ready to experiment with. Note that this playground requires OS X Yosemite as well as Xcode Beta 5
Nick O'Neill with a great idea for a site. It's a collection of Swift implementations for all those common iOS development tasks that you're completely comfortable with in Objective-C but feel a bit lost with in Swift. This is probably one to bookmark (do people still do that? 😩) as I am sure it will be continually updated as the language goes forward.
Kyle Sluder with a cautionary tale if you are using the new UIPresentationController APIs in iOS 8.