W3C is working on Web App Manifests (http://www.w3.org/TR/appmanifest/), allowing websites to declare app-like properties. ManifoldJS uses that standard for those platforms that support it, but falls back to Cordova for those who don't. Cordova is awesome, but the W3C also considers work done at Mozilla (Firefox Open Web Apps), Google (Chrome Hosted Apps) and stuff we did (Windows 8 had local web apps, Windows 10 extends over to hosted web apps).