So I got our Win 8 device and this works mostly (note I had it slightly wrong in my post above). The problem is it now is too responsive to scrolling so tap events don't fire unless you are exactly on with the tap. When you go to tap a button it thinks your trying to scroll and the button doesn't get the event. Anyone at sencha have an idea where to fix this new issue? I will be digging into the scroller to see if I can introduce a slight delay or movement to allow for tap events to fire.
And here's the rest of the fix. Use this override to fix tap events not firing because the system thinks there's a movement when you press on the screen.
Note Sencha, there's probably a better way to do this, so please don't stop working on this issue. Based on our tests the Windows 8 devices that are on the way are going to be screaming fast, and highly usable especially in a corporate or high risk environment (military, healthcare, etc.) where ease of configuration and ability to ruggedize the platform are both highly desirable. We just tested a new ruggedized device that has a hotswappable battery that made our application blazing fast (we have a pretty complex app) and weighs in at just 3.3 lbs. (iPAD with a heavy duty case is around 2.5 - 3.5 lbs).