10149 is much more improved compared to the previous version. There are a few glitches I have observed so far. Firstly, wifi cannot be turned on. Then, when you long press an app on the apps list, it doesn't show the list of options such as "pin to start" and so on. Instead, you see a black rectangle.On the bright side, the system is much more responsive, although maps still does not work. I also liked the fact that once you press on one app to open it, all others seem to rush towards you, producing an eye-catching display.