The Samsung X838 is, yes, a mobile phone with all kinds of regular-issue phone functionality. It hides that function-driving keypad behind the LCD and click-wheel interface, which can swivel out of the way to make room for mundane things like taking and making calls. (That swivel, in fact, goes all the way around the circle, so you could approximate a double-length candy bar if you wanted to.)
You’ll get a 1.3-megapixel camera as well. And in case you haven’t figured out what that click wheel can really do, it can play MP3s, which you can listen to (along with your phone conversations, if you really want to) using the included headphones.