No, he lost his suit against Pepsi. As quoted on Snopes.com:

"Leonard filed suit in Miami against Pepsi for breach of contract, fraud, deceptive and unfair trade practices, and misleading advertising. The issue then landed in federal court in Manhattan with Pepsi responding by asking the court for a declaratory judgment saying it did not have to give Leonard a Harrier.

In August 1999, the New York judge upheld Pepsi's case. "No objective person could reasonably have concluded that the commercial actually offered consumers a Harrier jet," U.S. District Judge Kimba Wood said.

Not that Leonard would have ended up with the full jet anyway if things had gone his way -- the Pentagon quashed the promotion in September 1997 when it announced that these $33.8 million jets are not for sale in flyable shape. Harriers take off and land vertically. But the Pentagon said any of the Marine aircraft would have to be "demilitarized" before being offered to the public, which means stripping them of their armament and rendering them unable to fly."