I have a Garmin GPSmap 60Cx, which isn't a bad device, although it approaches a brick in size and weight. I had a special handlebar mount for it, but the damned thing broke the other day while I was in the middle of a tour.

I guess the cheap plastic it was made out of couldn't take so much exposure to the sun.
Instead of buying another one, which I'm sure would give the same results, I wonder if there's a good universal handlebar mount on the market, perhaps an adjustable one that would allow me to switch off between the GPS and a cell phone or other device.
Thanks for any help you might be able to offer.