If the random reboot issue was not enough, Nexus S is now been hounded with couple more bugs. Number of users at the Google Mobile Help forum are reporting Nexus S is suffering from a loss of data signal whereas cellular calls remain unaffected. The resolution for now is to reboot the phone to gain the lost signal.
The other issue is worse than the previous one as it reboots the phone during an active call.
However, good thing is Google has confirmed to Engadget about a new update that will resolve all the aforementioned issues. There’s no ETA for the update but we expect it to be out soon.