The "|" vs. "l" error of mine, LOL ;-)
No, nothing I came across has the ability to stay on top of it. Many will "work" correctly when you move the "lens" to the area, but when you actually want to leave the "lens" there (and move the mouse away), then the "problem" appears.
But to me it is just fine. At the resolution I use on my 15" LCD monitor (1024 by 768 pixels) the original ETA box is so small that it just doesn't bother me at all that it is there. And I place the new ETA box in a place that suits me personally even better than the bottom right corner.
So to summarize, this is really a non-issue for me personally, but I understand that at small resolution, on smaller screen sizes, users may feel differently about this.