it's awesome, man! the only concern is whether if the dock holds the phone tight enough during accelerating/braking. did you purchase the cam locally or it came with the kit from alekshop? where did you connect the iphone A/V cable? the dock and the module?
Anyway, thanks for sharing and yes the result is impressive indeed!
btw, the slingbox pro is a good product and i've been told there will be a new model coming soon, just fyi