That dust bunny leaving the smudge on those panoramas… most likely dust on the sensor. Color me pissed the $%^* off that I have to send it back to Canon for service. It is under warranty and all, but still, it is a bummer. The upside for my images is that I will man up and just start carrying my D300 rig on hikes for a while. The G10 is the most capable digital compact I have used to date, but the helplessness of not being able to clean my own sensor is a bad feeling.