I’m currently evaluating Sencha Touch 2. I followed the “Getting Started with Sencha Touch 2” video tutorial and I implemented the demonstrated app step by step including the minification phase. I tested the application by accessing it over my Wi-Fi network using an IPod Touch 4 running IOS 5.1.
While I got solid experience for both application start up and screen transitions, I got poor experience when reading through a given blog post, specifically, as soon I start scrolling there is a noticeable jittering effect around text and images. This is especially apparent when the scrolling page “slows down” after performing a swipe.