I've only been using my Nexus One for about 24 hours and it has suddenly started rattling when i place it down on a surface or shake it a little. It also occurs when the phone vibrates. As you can imagine this is pretty annoying, especially as you'd expect something that costs over $500 to be very well built. I've worked out it's coming from the top end of the device near the camera but I can't find exactly what it is that's causing the problem Has anyone else come across this or did I just get unlucky? I've been very careful handling the phone.. haven't abused it at all.