Yes, I think it should be introduced. We have the technology available to determine with certainty whether a goal is a goal, and yet we don't use it? Game after game we see a goal not given that should have been, or the opposite. I think it will be a positive move to get goal line technology.
From what I have read about it, a signal will be sent to the refs watch which will set off a vibration alerting the ref of the goal. it is simple, fast and effective.