The most exciting bug I’ve seen: Web Sharing feature in the toolbar now brings up probably un-intended announcement of SketchCloud:
Clicking Get Started opens preferences, but there is nothing in there about the feature. Regardless, very excited for SketchCloud.
Edit 2: http://cloud.sketchapp.com resolves and shows a 404!
Edit: In App bundle / Resources, there is Cloud.strings: localisation file for yet-unannounced Sketch Online service. Nothing very revealing, mostly about email verification and logging in. Contents of the file are in this gist: