I've been faffing with TomTom Mobile 4 on my phone. You can download a list of cameras (red light, specs, gatso and popular mobile sites) and set it to warn you when you get near them. It does work really well, but not quite as good as my road angel.
Apparently the A70 is getting closely watched for speeders jus now. That's south lanarkshire into south ayrshire through Douglas, Muirkirk, Cumnock and so forth.