Iphone Powered Case

http://www.amazon.co.uk/Ultimate-Addons ... 563&sr=1-1

Has anyone heard of these guys or tried there products?

Yes, well sort of ...

See . I have this case for a little over a year now. It's not powered, like the one you linked to. I just use the iPhone USB cable and plug it into a USB charger. Works like a charm.

The case itself is waterproof, and I have had no issues with water leakage, not even when riding in heavy rain.

The fixing of the case to the bracket sucks. I would never trust my expensive iPhone to a bracket like this. I have therefore modified it, fixing it with 3 screws. This also gives me the opportunity to make the whole thing a low profile bracket.

Hope this helps a little.

I notice that this waterproof case has an attachment that is compatible with the GoPro:

http://www.lifeproof.com/shop/us_en/iph ... pro-mounts

Yeah , i've got it on my sd. It come with a strap you can wrap around the handlebars just in case.