I have seen a couple responses that say good, all for it, maybe it would be a good thing. Actually, I agree. Depending on your style, this may not necessarily mean an end to intraday or short-term. Some of us traded for many years with plus ticks and here is why it may not be so bad.
It will dramatically cut down on intraday volatility. Once a stock starts to decline it will do so in a much more orderly fashion. As shorts sit on top of it, there will be fewer spike shakeouts if you are indeed already short. It will also dramatically cut down on algorithms that 'check' the electronic books up and down to trade for pennies. When the shorts at a certain level are 'taken out' it will start a brief rally in a stock.
I am not assuming these things, this is from watching how it has worked in the past. As long as its a level playing field, it will be fine. May even be a plus as current markets are ruled by these computers. Spec's and market makers were exempt under the old rule. Seeing as we now have decimalization and the floor is only a small portion of the composite, this will not be the case this time around.
Noone likes change, but IMHO I think we might just benefit from this rule change.