So, let's get down to working with PhoneGap. One of the first things you'll notice when you make a PhoneGap app on webOS is that the page doesn't scroll. Palm has a nice inertial scrolling widget, so what's going on? Well, there's no scrolling widget in stock PhoneGap. If you drag your finger on a page, it'll just highlight the contents. Don't worry. There's an easy way to fix this.
Now, iScroll 4 likes to scroll lists. If you want a single page scrolled and are using one of the provided examples as a template, you can simply put the entire contents of your page into one <li>. Just go to the #scroller li style section and remove height:40px.
The framework has quite a bit to offer beyond just scrolling, but I haven't been able to get some of the other functions running just yet. The Pinch/Zoom and Pull to Refresh examples aren't working out of the box on webOS. Really, those would just be icing on a very delicious cake. With the scrolling functionality alone, iScroll 4 is a powerful and much needed option in your programming toolbox.