If you're like me, I like to view my emails through a unified inbox. So I was a bit frustrated when my shiny new Xperia Z didn't allow me to set the default view.

Well, just discovered a workaround.

Whenever you have to close the Email app, never use the Back button. Instead, just press Home. When you reopen the Email app, you'll be taken to the last view (which was Combined View). If you press the Back button to leave the Email app, it won't take you back to Combined View when you reopen it.

Now, as I've said, this is no more than just a workaround. It will not survive a reboot. But at least, you only have to set your chosen view once (in a while).