I have to agree, I just got a Wavebird last week. I thought it was too bulky and I didn't want to bother with it. Now I know differently. It's the same size as a regular controller, just as comfortable, and spot on response makes me wish I had taken the plunge a long time ago. I'l never go back to a regular controller now either.
And as for the Air-flo, It's a cool concept, but I have the first generation ones and they're a bit bulky. I'm curious as to the battery life of this thing also, it takes a lot of power to run a fan .