9. Sony Ericsson Xperia X10
Key features: 2.55-inch TFT capacitive touchscreen, 600 MHz ARM 11 processor, Android 2.1 OS, QWERTY keyboard, and 5MP camera
Complex says: Sony's Android phone does an awesome job of balancing media and social networking features. The popular Timespace UI links all Twitter, Facebook, and SMS messages together in a single thread, while the scene-stealing Infinite Button pulls relatable content, like YouTube videos and bibliographies, from the web for whatever song is currently playing in your media player. Plus you have five customizable homescreens where you can create and save bookmarks.