Google Still Struggling with Android Reboot Issues During or After Calls

It's not just me. Google has lots of people reporting that their phone reboots during, after calls or randomly with recent Android versions:
Nexus S, Galaxy Nexus, and more ...

Let's hope Google finds the issue, because if I have a longer call right now, I have a 100% sudden reboot rate. So basically I can only use my mobile phone for short calls since the upgrade. At least I have a landline phone and no phone flatrate on it.

The funny thing, too, is that e.g. long Skype calls via Wifi cause no problem. It's definitely related to the mobile network. I wonder if the problem is the same if I'm only on 2G or have data disabled altogether...