there's a video on you tube (You tube shite quality) shot on the RF Concepts.
it clearly shows the vignette which I got as the lens is so wide angle. plus you have a transformer, seperate mic and camera with lanc controller. NICE! the camera was a sony PC110 mini dv
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this was shot on the samsung but thanks to youtube it's also shite plus if you look carefully you can see the edges 720x576 needs to be expanded by a couple % to make it fit and the audio was taken with the microphone on top of the camera it's very good. Was about £280 and there's supposed to be a new model coming out which promises to be HD
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remember the Dog cam and all that other stuff is 4x3 ratio and 640x480 resolution they say it's a TV standard however I would despute that.
as for ease of use well
Samsung beat the lot
RF Concepts is very good but fiddly in comparison
Doog cam well it is what is
they're all alright in very bright / good conditions but to watch hours and hours of it.....
the RF Concepts is 4x3 ration and 720x576 that's DVD resolution as of rease of use it's alright.
I use the samsung VP220L it's got a video head with mic single cable records an hour onto SD and it's again 4x3 ratio and 720x576 (but not water proof) but the camera can be use seperately
to be honest and this is my opinion

hours and hours of POV road riding is boring.
chop it to 3 mins of exciting stuff cos all the dull as dish water stuff will drive you to self harm mix it up with some stills

.
Editted. here is the sample footage from the suday times article love that side wind and that blokes only going at 10mph.... what gonna be like 50-80mph....
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This was shot with a broadcast spec camera and I use a media composer to add the RF concept footage from POV angle from my paramotor camera and the Samsung head worn camera when the HP2 comes past. (you tube turned all that to shite as well)
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