More likely, the side button will fail. We have had at least 3 or 4 of them returned for a stuck or broken side button.
I had a few fail also so i stopped using the side button. I use the right soft key with a text label "Page>" that acts like the side trigger. That way i dont have to worry about side trigger failure.
Indicator dots in the top right tell you how many pages (like the iphone) and the page> button cycles thru the pages just as the side trigger did with page groups. Im not using page groups now though.