The latest Preview update was a MAJOR step backwards for my 928. The phone is extremely slow now. It takes over twice as long to perform pretty much any operation than the last build. Battery life has also taken a serious hit. The phone can use 50 % in 2 hours with NO talk time. The phone is also now getting much hotter. Last, several issues that were fixed in previous updates have returned such as the phone is once again auto playing random music on my phone EVERY time it pairs to my Ford Sync (2011 f250) even if I dont have the sync on media playback. This is annoying and also runs down battery life. Every time I turn the car on I now have to hit stop the music or it just plays til I do (will even switch to speaker and play when car is turned off).