No particular change with Photoshop's sharpening, no. But major changes with regards to the workflow concept since Camera Raw and Lightroom now have substantially improved it's parametric editing and sharpening capability and Lightroom 2 got PhotoKit Sharpener's output sharpening along with Camera Raw in workflow settings and the save as batch.
In that regard it's not really suggested to ignore the raw sharpening as Bruce wrote in CS2 (and using Camera Raw 3.6 which is way out of date) but doing sharpening for both source and content in raw, creative sharpening in Photoshop and output sharpening either in Lightroom, Camera Raw or Photoshop depending on your preferences...
There have been some movement with regards to devonvolution kernels and some exotic image sharpening algorithms but nothing really has made it into a product except for FocalBlade and one type of sharpening in Raw Developer. Smart Sharpen (which was in CS2) has a simplified deconvolution algorithm but it's nothing much to write home about...
As for the book, I'm working on an update which will cover Photoshop, Camera Raw and Lightroom due out this fall. The updated book will be very different.