I remember reading that during a surprise round you can only take a single action. A charge is usually a full round action but can be used if you are restricted to a single action, as stated in the special attack rules on charge. Since the pounce ability says that you can full attack during a charge, can you use it to full attack during a surprise round? The pounce description in the MM (p313) is as follows:
Pounce (Ex): When a creature with this special attack makes a charge, it can follow with a full attack—including rake attacks if the creature also has the rake ability.
My opinion is that you should be able to.