Whilst alarmed at the rebooting issue and concerned over the mic issue, it is not all devices that are affected, there are plenty of people who seem to be OK
One is a software issue that will have the devs crawling all over it until they find a fix and the other is looking like hardware. It might mean that I could be unlucky and have to send it back, crossed finger that Im ok, but I have waited too long and there really isn't anything out there that is comparable...