My wife has a brand new stock nexus s she's only had since September 23rd. In the past 5 days her phone has rebooted on its own twice while she was using it. Now the first time she says she's 100% sure she had power and when she powered phone on it said she had none and needed to plug in charger. I was next to her at the time and saw the reboot but don't know her power level before reboot but I saw the low battery message after. The second time her phone rebooted it lost power but didn't say low battery. I have a rooted EVO 4G and know HTC SENSE reboots are common for some (not me) and I know system reboots are common. My question are as follows: are reboots common for nexus s? If not I would imagine I need to use warranty with sprint since phone is 1 month old right? I have TEP on her line but I shouldn't have too pay. I only ask b/c Im the android lover, but my wife loves her device and felt it was enough of a issue to mention to me which knowing her means its a real issue