@Naz and Reasonable.
Does for me at least. I can point to any location on my TV with the Wii-mote just as fast as I can with the mouse. Perhaps the accuracy is not an issue with the Wii-mote itself but the skill of the user.
You also have to consider with a monitor and mouse, you are usually no more than 2-3 fee away from the screen but can be much further with a TV and Wii-mote. Try getting 3 feet from your TV and twitch your wrist side to side. You'll move the on screen cursor every bit as fast as you will with a mouse.
The biggest benefit to the mouse is friction. Stopping precisely were you like can be easier with a mouse because of friction against the mouse pad where as the Wii-mote has friction with just air...far less stopping power. Again, this probably comes down to user skill.
The rEVOLution is not being televised
