I want to applaud MS but this whole thing stinks of a PR move. Wacom has always had a customizable pressure curve in their software. This should be a bedrock standard but instead this catch-up is spun as MS' dedication to artists. To think they are just getting around to doing this (not even a user adjustable slider scale but just a few presets) speaks volume of how much they actually care about artists -- it wasn't goal they had in mind until they sent out their demo units.
Personally, I think the SP3 is probably the best PC for digital artists, but I'm disappointed in how little they worked on making the stylus user friendly.