If you're an iPhone Video shooter, this Lensse Camera Stabilizer for phones is pretty fluid. (BTW that's not an iPhone. That's the Samsung Galaxy) I'm thinking it should be able to support my GoPro HD once i've added enough counterweights. The drilled brass socket for the Gimbal is smooth, but as other stabilizers like this the angle of rotation is limited. I'll need to really test the weight once my GoPro LCD Bacpac has come in, but it should be fine.