Received my Osomount from amazon and am pretty pleased with it. It isn't what I'd class as the most robust mount I've owned(would have liked the plastic to be a little thicker as you can kind of bend it a little in places), but it certainly holds on curved and textured surfaces. It's stuck to the dash of my A2 like poop to a blanket
Haven't actually used it on the road yet as only fitted it earlier, have no doubts it isn't going to come off but how much jugger there will be remains to be seen, with a heavy metal phone such as an E7(which I also own so will be testing) I think it will jugger a fair bit.
Anyway, here it is holding my N9, actually the lock button I mentioned above isn't really an issue with vertical of horizontal positions as the phone is held very well slightly off centre.
...and E7
[EDIT]Wow, first time I've made a comparison between the camera of my E7 and N9, the N9 pic is way superior! You can see what I mean about the curve and texture of the dash in the second photo, no other suction mount I've tried would stick to that surface.