My apologies for not being timelier with this update. The D4 is quite honestly a great phone, but it may not be for everyone. It’s got weight to it and it large. Dimensions are: 4 5/16 tall; 2 9/16 wide and ½ width (screen to back). It looks like a sister to the RAZR…just a heavier sister. Slider is super smooth, far and away better than any other previous generations. Screen is brilliant, much better than D3, Bionic and matches RAZR (IMO). Yes, the screen is only 4’’, but it actually seems larger than that because of how the entire screen slides to reveal the keyboard. Keyboard = AWESOME. That’s as simple as I can put it. Music quality is perfect, whether that’s having headphones or the external speaker blaring it. Absolutely no ‘whine’ like others has experienced with Bionic. Phone is so smooth, haven’t had any drop 4g issues, which is welcomed. Screens flow easily, no freezes or lock ups. With the limited time that I have had it, I would choose this device over every android product out there right now (with the exception of the Nexus – only because I haven’t played with that one yet).