So the forum topic is how is Build 10572 - hows it working for you? Well I've been running various preview releases on my 930 for several months but today I will most likely flash back to official 8.1 for this phone and pass it on to someone else. This build for me finally shows me where Windows Mobile 10 is heading and it really isn't going to go anywhere. All that Microsoft has achieved with these builds is demonstrating a flashier UI and how good its own new apps (Outlook, Calender, People and Office) will run under the new OS but there is very little else in reality to offer. The overall app environment has not been resolved and is actually shrinking plus VPN support is still very weak. The idea that universal apps will save the platform is just pure fantasy. Everyone knows that tablet sales have slumped and PC sales are down and these are the devices that Microsoft is relying on to generate demand for these types of apps (I don't know of anyone who actually uses an app in Windows 8 or 10 as they are just so simplistic and limited on that platform). What is driving app development is in the mobile space where larger smart phones are cannibalising PC and tablets sales. Getting back to this build, the ability to side load Android apk's has been removed (so any hope of fixing the app issue is gone) and now messaging is integrated with Skype whether you want it or not (now I'm getting random invite notifications to add unknown Skype users to my address book). Windows Mobile 8.1 was released in Apr 2014. In that time, Android has gone from ver 4.4.3 to ver 6.0 whereas in that time Microsoft hasn't had any major updates and still doesn't have an actual release date for Mobile 10. They're just not serious about the platform. The best option would have been to port their own version of Android with their own launcher and store so Google apps could have been available for Microsoft immediately. Oh, hang on, they already did that (the Nokia X project) but they killed that off! I love Windows Mobile and have used many different handsets for over 3 years. However, time to get real and switch the lights off.