First, allow me some preliminary remark. Since 2002, I am using Windows Tablet PCs. The Q550 should be my fourth tablet PC. From datasheet ago has the Q550 everything required, pin, good display, SD slot and USB port. Only the SSD memory is a bit small. But the really big disadvantage is the slow speed of the Q550. The gesture control and unfortunately the pen software are not supported by Microsoft. Therefore, this program runs with high priority, but very slowly. At first I wanted to write with Journal notes. That was just after I had gesture control disabled. Then, the operator with the stylus. One click, nothing happens or if the Q550 but accepted the command? That I could never find out. Now, after 9 years of experience with Windows tablets I thought, deal with a Windows tablet pen to be able to. During Q550 me did not succeed and the gestures I had to switch off yes. Without Bluetooth keyboard and mouse of the Q550 is unusable. Normally, a Windows owns Slate tablet PC min. 3 keys CTRL-ALT-DEL, keyboard and ESC. ESC does not exist. That's a big problem. Conclusion: Well-intentioned but poorly done. My first Windows tablet, a Compaq 1000, 2002 was significantly faster than the Q550 today.