Share your experience!
It is not possible to set a Task in the Calendar application. When pointing to Task a blank page open and is not possible to write anything. The events and the rest of the Calendar work OK. Somebody has the same problem?
I never managed to get Tasks working either (and integrated with Google). I suspect it is fundamentally broken.
Instead I used https://play.google.com/store/apps/details?id=com.plusonelabs.calendar&hl=en (which is open source) to display my calendar as a widget and gTasks to display and sync my tasks with Google.