From the Dollywood press release:
The 2.5-minute ride experience features dual rotation both from the tower and the ride vehicle. Situated in the middle of a 5,100-square-foot pond, the Timber Tower takes passengers high into the air above Thunderhead Gap where the ride vehicle rotates nine times per minute as it makes its way to the top of the tower. Once there, the tower begins a side-to-side swinging motion, allowing the ride vehicle to topple multiple times in various directions at a 60-degree angle, appearing to splash riders into the water below. With a 40-passenger capacity, the Timber Tower will accommodate 565 riders per hour.
The ride will open in 2006 in the park's Thunderhead Gap area.
I've heard the Topple Tower provides a fun (not too intense) experience, so it should fit in just right.
It's in some foreign language, but if you click on the video links, you can see it in action. It doesn't look terribly exciting from the video.
Walt Disney World
Tokyo Disney Resort
Theme Park Insider Books