If you are thinking about dipping your toe in the mini camera water it may well pay you to nip over to you tube and have a look at comparison videos between the go pro and the Mobius and ask yourself why there is a 300 quid difference in price?
The Mobius does a great job, costs £60 and takes screw-in alternative lenses for those who hate the extreme fisheye look.
I do have a go pro, I like it but I see I can buy a 14 mpx Nikon 3100 and zoom lens in Asda for 40 quid less that the Go Pro. If I hit both very hard with a hammer there's only one of them whose parts I can count on my fingers.
Rob