I was on a trip to Calif. which I took my 60csx and while in the rental car my arm was fallen off holding this near the dash. So I went to find screen and the shopping icon found the nearest Radio Shack, I took my GPS in to find some kind of mount. All I could find was a cell phone vent holder and this works great. I take this when I travel and it breaks down easy and fits all the auto's. I use this in my Jeep at home and I have never had this come off during any rough driving yet. All for three or four bucks...
I was also in the market for a auto mount for my Garmin 60Cx. After reading this post, I drove to my nearest RadioShack and purchased the vent mount. It works great. The salesman told me that these little beauties were on closeout. So, they may not be around for much longer. I'm contemplating whether or not to get a second one as a backup (just in case it breaks).
Here is the link and a picture.