There seems to be nothing else available that even comes close.
Ian Knights more>>
AbelCam supports tilt / pan from a browser through java applets or javascript.
Control the Typhoon Motion Cam from a remote location.
Other Names for this same hardware, also supported by AbelCam:
AbelCam supports Tilt/Pan and Zoom with these cameras.
Note: Tilt/Pan and Zoom functions are available only when the capturing is active.
USB Tilt/Pan Device: TrackerPod