On first run, dive into the app drawer and you'd find a bunch of first party apps like ASUS Mobile Manager, ASUS Support, AudioWizard, Auto - start Manager, Do It Later, MiniMovie, PhotoCollage, Laser Ruler, MyASUS, Share Link, Splendid, Weather, WebStorage, ZenCircle, and ZenTalk. (androidcentral.com)
In the rare case you have a great first party app like Zinio or Nook, Microsoft actually had to pay them to develop an app for them. (goodereader.com)
For now only first party apps from Google support the functionality, but with the 7.1 Preview out developers can begin building and testing shortcuts in their own apps. (techspot.com)