This may be a dumb question, but I am new to using car PDA mounts (I have always used stand-alone GPS or aux port/iPod connectors).

Of the mounts available (specifically the Arkon universal passive mounts), can they be easily rotated to put the phone in landscape mode rather than portrait?

I ask because most of the photos show portrait mode, but as we know the n900 doesn't car much for it. I already use the phone in the car extensively (podcasts while traveling for business, etc.) but it usually sits unavailable in my dashboard storage bin.