I used the phone for almost 10 days now, no portico update yet. No reboot problem for me(though I manually reboot it for many times just to view marketplace with different region settings). Heat problem yes. As long as I play angry bird or breeze, both are xbox game, it warm up significantly on the back (around the CPU location), but not very hot (maybe because it's cold here). However, couple days ago when I was out having lunch, it just heat up in my jean out of no reason, and it's really really hot on both sides. I am wondering if it is a network problem or I accidentally activate the camera. After that, never experienced any glitch