Seems like lots of people are having issues with camera lag (doesn't really matter to me, as all of the devices hooked to my companies BES have the cameras disabled by policy) and it seems like a software issue.
The rebooting device may just be bad hardware, as a relatively small percentage of users are reporting this problem. If it were a software issue, it would probably be affecting a much larger percentage of 9530 owners.
BB devices I've owned: 957 : 7750 : 7250 : 8703e : 8830 : 9530 : 9630 : 9650 : 9930 : 64GB PB
BES 5.0.4 ~ BES 10.1