Well, only two years after they broke the 300ft barrier with the Millennium Force, Cedar Point is building a 420ft, 120mph launch coaster called Top Thrill Dragster. It is the first coaster to break the 400ft barrier, and will officially be known as a "stratacoaster." It will also be the fastest rollercoaster in the world with passenger trains being launched to 120mph in just four seconds . Top Thrill Dragster will be their second new rollercoaster in two years, and this latest one has cost the park about $25 million dollars.
Cedar Point Website with computer generated picture of ride.
Top Thrill Dragster Page
Press Release (from Rollercoaster Database- rcdb.com)
Hopefully I will be able to get out to Cedar Point this summer to give this thing a try, and Wicked Twister which came out last year. It looks like it will be one amazing ride!