I am trying to build a tab app, each tab is a different page. One of the tabs is a map and I want to do pinch zooming.

When I turn on Multi touch (system.activate(multitouch) the tab bar stops functioning. Even if that is the only line I add to my code.

It may be that I don't understand multi-touch. Can you point me to a good tutorial that explains the concepts of multitouch from the beginning? I saw the multitouch button example it appears to work. I wonder why the tab bar breaks.

If you create a tabBarController class and then have modules or classes for each tab then multitouch should work if you instantiate it in the modules. I didn't get any issues that way.