>> The web isn't close to competing with higher-end native apps.

I made the switch from web development to native app development after leaning this fact at the HTML 5 conference a couple years ago. Every framework, rendering engine, etc., touted its strength in terms of a percentage of native app performance: this renders 80% as fast as native code, that responds 90% as fast, etc., etc. At the end all I could think was why are we wasting our time with mobile web?"