Seeing Microsoft Edge [homepage], final release version, posted at the Download Crew. Key points I picked up from their post is Microsoft has decided to stop trying to build their own browser from scratch and moved to the Chromium framework, which is the engine that powers Google Chrome and other browsers. I can tell you, I have tested this browser and Microsoft has done an excellent job.
Edge is the release version of this new browser. Unlike Chrome, Microsoft has deployed their own account system which will eventually synchronize your data including favorites, extensions, themes and browsing history. Right now, only your favorites are synchronized.