Recently I noticed that my battery temperature, even when the phone has been sitting idle for a while, has substantially spiked. It's averaging over 90? easily, where previously it would hover in the upper 70s. Any thoughts on whether this is a hardware problem? It seems to have coincided with increasing random reboots I've been experiencing lately, which I'm tempted to view as overheating in light of these battery temps. I am using a non rooted incredible with the stock battery.