I grabbed the Snowstorm SL client that supports point-and-click to move, and enabled it. Then I tried two things:
- clicking (or rather, double clicking) on a point with an obstacle on the direct line between me and the point
- clicking on a point with water on the direct line between me and the point
I shudder to think what would happen at a store hundreds of meters in the air had I tried to cross a gap.
The sole virtue, IMHO, is that enabling point and (double) click doesn't preclude the old standard arrows to move, so on the rare occasion that it proves useful, you can use it, and stick with arrows the rest of the time. I didn't try interrupting it, as you'd definitely want to do if someone unexpectedly appeared in or walked into that straight line path that is all it knows to do.... and that is supposed to be the savior of Second Life? Puh-leeeze.
P.S. Am I opposed to it, as per Hamlet Au? Only when I think of the opportunity cost. What actually useful things were put off or discarded in favor of... this?