1. I only ever want to support one platform (Android/iPhone/Blackberry)
2. I have graphics/visualisation requirements that can only be met natively (e.g. games animations)
3. I need a feature that is not supported by HTML5/Hybrid Apps (e.g. not in the Phonegap library)
4. I only know how to program the Native SDK
5. I hate JavaScript
6. I work for Apple/BlackBerry/Microsoft
7. I have an “according to Hoyle” commitment to native look and feel
8. My app renders 3D graphics natively
9. My app platform doesn’t support HTML5
10. I don’t trust HMTL5

See the top ten reasons you might prefer a HTML5 app