Dango, what are you goin to use the Thule clamp to try and make? (serious question).
Re GoPro HD, they are great. Excellent picture quality but what really distinguishes them is the number of different ways you can mount them on yourself or your bike and have a stable platform to record from instead of some dodgy bracket that wobbles like a jelly and ruins any footage.
Missing from the HD HERO 960 that you get on the full 1080 are
* 720p @ 60fps (I’ve only used this once)
* 1080p video (all my videos are shot using 960 @30fps)
* the HERO BUS expansion port. As mentioned above, the LCD screen doesnt even exist at the moment so no loss there.
Plenty of videos that I have shot and edited if you click on my name above.