I've just got back from Heathrow airport, having taken my regular fare there. He is quite involved with MS, and has a MS supplied 1520.
I told him about the thread on here, and asked was he overly concerned about the 'apparent' storm in a tea cup over W10M . His response was that it would be coming, maybe not in the first wave. He also stated that as a 'flagship' device used by businesses, it would be a bit of a **** up.
He is running W10M (TP) on his 1520, and I have to admit, it looks bang on, and suits the larger screen. Can't wait until MS supply his 950xl (?), as I am at the front of the queue for his 1520! Gonna cost me a couple of free trips to LHR, but hey, the 1520 will last much longer than a fare!!