I got this for my shiny new Galaxy S 2 phone, and I do not get on with it.
For starters, it failed to stick well to my cars dash board. Having a small horde of children, I drive an MPV and it has acres of dashboard space, just gagging for a bit of kit like this to fill the void. But no, it failed to hold so I didn't even try to drive off with it holding my phone.
The next problem was it didn't seem to want to hold my phone in place securely.
I am not going to recommend this to anyone, it seems far more hassle than I think it is worth. This is my thinking, but I purchased this from the reviews on Amazon and others seem to get on with it.
1 star is harsh, but as I couldn't use it, that's what it gets.