Below the TFT screen, you'll find the staple three-button capacitive control panel.

ENGADGET: Nokia Lumia 620 review: precisely what an entry-level smartphone should be

However, upon completion, instead of reaching for toilet tissue you press a button on a control panel on the wall.

WSJ: In the Driver's Seat

The review notes that all of the media player and internet controls are the same as the aforementioned device (Cover Flow, lists, zooming, etc.), though the touch allows you to "double-click" the button on the front of the device to bring up a music control-panel, no matter what application you're in.

ENGADGET: iPod touch gets its first review

Positioned to the right of the e-paper panel: a top button scrolls up, a smaller center button makes selections and the control on the bottom scrolls down -- through messages, menus or tracks while controlling music playback.

ENGADGET: Pebble smartwatch review Mobile