I am currently building a web app that I plan to also port to mobile. I have list that needs a custom item render that the mobile "IconItemRenderer" would be great for. However, when I run the web app, I get an error that "FlexGlobals.topLevelApplication.applicationDPI" does not exist in the base class call to "function get applicationDPI():Number". I can override that method to return a value and eliminate the error, but I end up getting an odd display problem. Ultimately the mouseOver highlighting is larger than the actual list item. Anyone know a trick to using mobile item renderers in a web app?