I want one!
Take a look at the OBS Crius RDA. I really like mine and the airflow is somewhat similar.It can't be as good as the Dead Rabbit, lol.
I really like the airflow design on this one, wonder why it took so long to come up with a design like this one.
$70 is too much for me, but if I get the chance at one for $40 or less I will give it a go.