These Rule changes come into effect as of 1st October 2008 (i.e. after the Olympics)

4.3 Uniforms

The provision that T-Shirts may be worn by Players under their game uniforms is not valid anymore.

25.2.3 Player falling on the Floor

It is legal when a player falls and slides on the floor while holding the ball.

28.1.3 Ball goes into teams frontcourt

The ball goes into the teams frontcourt when during the dribble from backcourt to frontcourt, both feet of the dribbler and the ball are in contact with the frontcourt.

30.1.2. Ball returned to the backcourt

It will not be a violation anymore if a player who jumps from their frontcourt, establishes a new team control whilst airbourne and then lands in his teams backcourt.

31.0 Goaltending & Interference

If a player reaches through the basket from below and touches the ball, it is an interference (not just a simple violation) with all the relevant rule consequences.

36.1.4. Unsportsmanlike Foul

If a defensive player causes contact with an opponent from behind or laterally in an attempt to stop a fast break and there is no opponent between the offensive player and the opponents basket, the contact shall be judged to be unsportsmanlike.

38.3.1. Technical Foul

A Technical foul can be called on a player for excessive swinging of elbows (without contact)

There are other rule changes but these do not come into force until 2010 / 2012.