Okay, so I've had my Moment for less than a month.

Just now, in a meeting, I notice the LED that illuminates the back "button" is flickering. Then it goes out entirely. The battery is, admittedly, low, so I've plugged it into USB to charge.

The current state is that it's lighting, but more dimly than the Menu or Home "buttons".

Do I have a bum phone, or is this expected behavior when the battery is low? I did buy the phone direct from Sprint, and like I said, it's less than a month old so I can get it replaced at a store, I'm sure, but if I can avoid it, I'd rather not, since I installed a screen protector on it flawlessly (I mean, no way will I ever get one on this well again) and I'm sure setting up the new phone to reflect what I've done to this one will be a pain in the butt.

Anyone else notice this behavior?