Here is a video showing some of the multiplayer functionality of Wii Play.  The new Wii game is expected to cost $50 and will ship with a Wii Remote.  Will this be the next game to mix in as part of a good Wii Workout?  Maybe so.  Laser Hockey looks very cool.  Games include:

• Table Tennis
• Laser Hockey
• Fishing
• Find Mii
• Pose Mii
• Shooting
• Billiards
• Charge!
• Tanks!
  

The current expected release date for Wii Play in the US is 02/12/07