From Reuters, via The Washington Post:
Former U.S. president Bill Clinton will meet Taiwan President Chen Shui-bian on Sunday during a whirlwind visit to the island that China regards as a renegade province, but China was restrained in its reaction.
China believes Taiwan must be reunited by force if necessary and objects to any participation by the island in international affairs, including visits by foreign leaders.
Clinton arrives in Taipei on Sunday at the invitation of the Taiwan government and will deliver a speech on democracy and security, said foreign ministry spokesman Michel Lu.