The core of the app is still the same: it will dynamically change the app links shown based on contextual factors. That means, you'll see news and weather when you wake up, productivity apps while at work, and music or navigation while driving. Yahoo has integrated a couple of its services for these times, so you'll see weather from Yahoo, and news briefs from Yahoo's News Digest app. Calendar integration has been enhanced, and a swipe from the bottom of the screen will bring in your favorite contacts.
Interestingly, while the app has gotten Yahoo branding and integration, Yahoo is promising to "stay agnostic" and add in non-Yahoo content as well. The plan is to integrate whatever service offers the best content for a specific context. We'll have to wait and see what that could mean.
Download: Yahoo Aviate Launcher