We've been pressing the Start and Select buttons for decades, whether on a SNES controller, the original DualShock, or the most recent DualShock 3. As you've probably heard, the DualShock 4 does away with those iconic inputs, replacing them with the Options and Share buttons and using the newfound space to insert a touchpad. Problem is, games still use the Options button for all the functions you'd expect: pausing, checking out the in-game menu, or skipping cutscenes. And it'll be days before your thumb can remember to flick up and to the left instead of the center of the controller to perform these actions.
It seems like a trivial gripe, but it can be fairly disorienting for PS4 newcomers, especially in cross-gen games. And while the purpose of the Share button is awesome, pressing it accidentally prompts a jarring half-second of confusion while the PS4 UI pops up. You'll almost wish that the touchpad button would act as the Star...err, Options button, but that hasn't been the case in the PS4 games we've played thus far.