Honestly, I'm not too worried about it myself.
If I am well-prepared, and have good recommendations, and have a GPA which for the most part reflects my level of understanding, and write a statement of purpose that effectively shows who I am, then I can't imagine being rejected for a difference of 0.05/4 = 1.25%.
I'm aiming for a 3.925, because that's one A- for every three A's, but I really won't care if I end up with a 3.888 (Which is three A-'s for every five A's).
Anything above a 3.9, though, I think is essentially indistinguishable. At my University, anything above a 3.9 puts you in the top 5% GPA-wise. Once you are in that range, it becomes more a matter of "Who had a difficult grader sophomore year?" than "Who is better prepared?"
It's a slippery slope, certainly: you don't want to be dipping down into the 3.7 range. But if you are slipping, worrying about your future is the last thing you should be doing, because it helps not a bit.