As anyone with both an iPhone and iPad can tell you, there’s a distinctive difference between the Camera app interface on each type of device. The iPhone’s Camera app layout takes a horizontal approach to button positioning, while the iPad’s Camera app layout takes a vertical approach to button positioning.
Apple likely has its reasons for designing things how they did, likely to make accessing controls on the iPad easier when your thumbs are on either side of the device as you control it. But wouldn’t it be nice if there was at least some form of synergy between the two platforms? If you answered yes, then you might enjoy a newly released and free jailbreak tweak dubbed iPad Cam by iOS developer pholic.