I personally use a
Pro Clip mount and it works very well.
Pros:
-Not on windshield-out of the way, and in some states windshield mounts are illegal (view obstruction)
-Integrates well into car. Fits between dashboard panels very snugly and without damaging your vehicle. As good as screwing it into the dashboard but without the holes. Vent and suction mounts can occasionally fall off
-Designed specifically for your car and device. 1 part for car, 1 for your Axim. See the site for details
-Tilts and rotates, ability to adjust angle and even set to landscape mode*
-All buttons and ports fully accessible
Cons:
-Fixed location, many vehicles will only have one mounting location available (but it is a good location)
-No powered version at this time, but you can hook up power to it
-Landscape mode is generally not very safe for your device unless you modify it a bit
-Kinda pricey (~$70)
They do deliver via DHL too, which is extremely quick due to their low package load (all 3 times I have had DHL shipping, delivery was overnight at their standard rate)