I was just browsing the ETC website today, and I stumbled across The Radio Remote Focus Unit. It's pretty much just a remote control for the board. I was wondering, has anyone used one of these? It seems like a good idea to me, but I would just like to get some other peoples' opinions on the equipment. It's awfully tempting, in my opinion. I think I'll start lobbying for one, unless it turns out that it's just an overpriced gimmick. Anyone have any opinions on this item?