Java, vs Phonegap, vs Kyvi?

Question

Which of the three is better and faster for learning? Ps (obv that java is better, but how long would it take to learn enough to make good android applications?

Answer 1

And which one has a faster learning curve? (html, css, js), java or python?

Answer 2

HTML, css, and js probably are the easiest, but not recommended for app development.

Answer 3

I just published my first app
I used phonegap html, css JavaScript
https://play.google.com/store/apps/details?id=eu.didiweb.SlidePuzzle