I bought a "Panasonic FT4" 12 months ago.
It has had a pretty rough life and seems to be none the worse for it. Mounted to my kite buggy and land yachts and has handled the abuse. Ocean shots from a kayak it seems to handle the sun glare really well.
12.1 Megapixels stills, GPS, Compass, altimeter and barometer. Waterproof to 12 meters for 60mins, and the best bit "4.6X optical zoom". Everything looks too far away with the Gopro.
(18.6 digital zoom which is grainy and useless at this range, but very handy for reading street signs without your binoculars while holidaying over seas).

It knocks out a nice video in 1920 x 1080 with AVCHD or MP4 if needed. Stabilised on or off.
It isn't as protected as a Gopro (just in a silicon jacket) but it's been run over many times by buggys and yachts on the salt lakes and beach.
A bit harder to mount as it only has a 1/4" threaded socket in the base of the case.
I've converted a few (2) Gopro users here, after they used mine.