Woulden't it be more informative to explain WHY you people all think this is a terrible change? I don't think it is that bad, it removes additional pauses of which the game already has so many. Players may need some time to adjust, but this goes for any change of rules (Federer used to hate Hawk eye).
The only occurrance where this rule change really makes a difference is when the ball touches the net quite firmly and its trajectory becomes completely different while still being in. This is quite rare though. So please explain to me what the big problem is...
Why trick up the game for a silly change? It hardly saves time at all. What, maybe 2 minutes a match? This really effects Challengers in Europe more than the States. Players have always said nets are pulled looser in Europe which will allow some serves to "fall" in after it clips the tape. As mentioned before, this rule was put in college mens tennis to take away cheating, but since we don't have that on the Pro Circuit, this rule is a joke and I'm sure wont be used after the 3 month trial period.
BTW, Federer still hates Hawkeye!