no he hasnt tested this druid as he said he was just winging it. personally i would use a wind druid, because they are so versitale. they work equally well for pvm and pvp.
max cyclone armor, tornado, twister, hurricane, and oak sage for more life.
reason i would do this is because you use most of the skills and they are all synegies for each other minus the sage. for example you cast cyclone armor, then hurricane, and then you can cast tornados or twisters. another bonus it the fact that you are doing 2 types of damage, cold from the hurricane and physical from the tornados. also this is very similar in to a hammer din in the fact that you do no need great items to be effective with this build, and you do not really need great resist like other classes due to the fact that you absob elemental damage with your cyclone armor.