Personally, I've been writing a Notification Center widget (one that displays iTunes Lyrics -> pic) using Swift and have been absolutely loving it.
The language has already evolved a lot during the betas for the better. I wonder what's next for Swift 2.0 or when that will be released. It would be really nice if Apple starts rewriting Cocoa/UIKit using Swift too.
Just name it Lyrical. LyricalToday gives me a bad quality impression. I don't know why. Just my 2 cents