Below the screen are four familiar Black Berry keys (phone, menu, back, and end / power), along the left is a convenience key and a micro USB port (RIM has eschewed the more common mini USB slot for the lower profile of the newer variation, though that seems to be the way the industry is headed), and on the right side is another convenience key, volume rocker, and (yay! Around back, the battery cover is made from solid piece of brushed aluminum, and the camera and flash sit atop the plate, covered by a glossy plastic strip.Along the top of the phone there's a single LED to the right, and lock and mute keys incorporated into either side of the casing like soft rockers -- a nice touch.In the browser, you can hover above a link with your finger before clicking it (a big help on crowded pages), and you can double tap (not click) to zoom into pages, though there's no way to back out other than hitting the minus magnifying glass.
The screen is sensitive enough, surely, but how its software reacts to those touches makes all the difference, and here the feeling is that you're never completely in charge of the phone. One of the components of RIM's success for that model has been the inclusion of QWERTY keypads (and more recently the halved QWERTY Sure Type keyboards) on their phones.
All modern Black Berrys use a QWERTY or Sure Type keypad coupled with a trackball for navigation, in addition to heavy emphasis on a pop-up menu accessible by the "menu" key from pretty much every section of the OS.