This weekly bunch of digital resources targets one topic: mobile application development with HTML5.
Before starting anything, you can learn some relevant basics about Native, HTML5, or Hybrid: Understanding Your Mobile Application Development Options.
Another significant resource is this concise but complete chart that provides a mobile frameworks comparison.
If your project of mobile app development requires Node and the gulp package, there is this useful tutorial: Getting Started with gulp.
Start short: only 24 hours seems exaggerated, but this awesome blog post shows How to Build an iOS and Android App in 24 hours with HTML5 and Cordova.