Well I must say how overwhelmed I was by your responses to my recent pole poll…NOT! In the 48 hrs since posting I’ve had a grand total of three votes, and one of them was me. Honestly I don’t know why I bother.
You probably don’t even care whether anyone got the right answer do you? To be honest, I can’t say what the right answer is with total confidence, but from what I’ve read and a couple of other telltale signs I’m confident (enough to put a fiver on it) that they are mobile phone antennas, designed to replace or augment those unsightly dish towers.