Hi Folks: The 2nd "Lightroom Brownbag" get together was today, and Tom Hogarty was giving an overview of some of the Lightroom 3 Beta 2 improvements. One bit of information he gave out that, according to him hasn't been written anywhere yet, is that in the Adjustment Brush, setting sharpening at -50 to -100 now introduces a form of lens blur. It was a 'thank you for coming' tidbit. Haven't tried it yet, but I'm sure it will have its place.
Mike.