Why I can't apply my CSS Class to hello?
{name: "hello", content: "Hello From Enyo",className:"myClass",ontap: "helloTap"},
Enyo 2.0 changed the way you specify classes for your components. You should no longer specify styles or classes in your kind definitions. If you need to do so you can use 'classes' instead of 'className'.
The recommended way is to call addClasses (was addClass in Enyo 1.0) inside your create function. To add styles directly, call addStyles.