I wanted to provide a detailed review... but what the hell, why use so many words when I can make it nice and simple? I am using Motorola Droid 4 XT894 as my main phone for month and a half, and not coming back. Main reasons are: XT894 literally destroys N900 in browsing experience and battery life, and provides complete user ecosystem when combined with Lapdock. I am typing this message on Lapdock 500. It has 14" 1366*768 screen, fantastic keyboard, good battery life and is overall very comfortable to use. I really appreciate the fact that it's an extension of my phone rather than separate device. Neither the phone nor the lapdock in this combo are perfect. But all in all, it's the best thing money can buy - at least for me.