Great idea! This is exciting!! Sign me up for the drawing, please!
1) I own several grills, all charcoal, with my favorite (and most often used) being my 22 1/2" Webber Kettle.
2) I use charcoal only, mostly hickory and mesquite lump.
3) I live up north of Seattle and our climate is very mild, both summer and winter, so I grill outdoors year-round (even in the rain...oh, is it raining again? I hadn't noticed!) I have to say that my favorite thing to grill is pizza. I am playing with several dough recipes and the grill gives me a chance at higher temps than my kitchen oven.
I'm keeping my fingers (and eyes!) crossed cause I sure would love to make pizzas with your invention! Looks like exactly what I need!
edit: Forgot to mention that I also cook outside, both a pot on the grill and with a propane turkey deep fryer which I also use to boil the Dungeness Crab that DH and I catch on Puget Sound..and make Frogmore Stew, etc. My pizzas are, I guess, more accurately baked than grilled on the Webber Kettle.