Happened few times now, that when someone calls me the phone/people app crashes and I can't answer or see who is calling although phone is ringing. Afterwards calling back is impossible without a reboot.

Also the screen started to go to sleep after 5-6 seconds for some reason for a while, this was also fixed by a reboot.

Those are the two bugs that have bugged me the most, otherwise quite smooth sailing and no bigger complaints. The few android apps that I use work great, and the UI starts to feel more natural by the day. Just bring on the UI updates and fixes and I'll be happy for one.