I think that the optical image stabilization systems on consumer cameras are designed to reduce camera shake from human hands; I suppose they might cope with small bumps and wobbles from the yaw and pitch of UAV flight, but I am not sure if they can…
You should check out the Canon PowerShot S80 [0] and some of the other cameras in the PowerShot range. It can be controlled via the Canon SDK (Software Development Kit) [1] and the camera's USB port.
[0]:…