My experience with Sencha Touch was pretty terrible. I'm not sure if it didn't fit my mental model or what, I had a lot more success with Kendo Mobile and Kendo

My experience with Sencha Touch was pretty terrible. I'm not sure if it didn't fit my mental model or what, I had a lot more success with Kendo Mobile and Kendo MVVM. The way Sencha Touch (and probably ExtJS) handles data sources for remote data seems cool at first, but a lot of it ends up feeling pretty gross. Also, offline data storage or things related to that for mobile seemed broken/confusing/nonexistent.