The Ballistic disc made by Rip Disc Golf is now PDGA Approved as of 9/19/2012.
"Rip Disc Golf is happy to announce the release of our first disc golf driver, the Ballistic! This is a high speed overstable driver with a load of glide and a predictable fade. Lower weights will turn over to stretch out the flight for players with slower arms. Max weights (175g) are the way to go if you've got a cannon arm. The Ballistic is true to its name as it's faster than a speeding bullet! Available soon in stores near you." - Rip Disc Golf