As you can see, the hamburger menu is hear to stay, so get used to it.
The hamburger menu had to be used as this makes the universal apps more consistent across all screen sizes.
But you know what? the pivotal menu is still being used and the way Microsoft has implemented both the pivotal menu and hamburger menu is very impressive.
You can download the apps from the Store Beta on your Windows 10 Mobile phone
So what do you think of the new universal apps?