So it's basicly a battery powered palmnailer in a right angle drill- like body. link
I haven't used it (or a regular palm nailer for that matter), but if you read the reviews on the link, most people don't like it.
Saw the commercial for it. Looked like a really neat idea. Didn't think of the air powered palm nailer as the better idea though but it sure is. The concept is good but being a Craftsman, I bet the execution is lacking.