In a recent post, Craig Villamor proposed "there are many business benefits to building HTML5 mobile apps, but few, if any, user experience benefits." As with all questions about design I guess... it depends.
First, we have to agree on what a "user experience benefit" is. If you've ever followed conversations about defining user experience you know that the kitchen sink is often not out of bounds. So I'm going to keep things simple and rely on Peter Morville's User Experience Honeycomb diagram as our yardstick.