Yes Photoshop's Smart Sharpen is based on deconvolution (but you will need to choose the "More Accurate" option and the Lens Blur kernel for best results). Same with Camera Raw 6 and Lightroom 3 if you ramp up the Detail slider.
Thanks for the information. The behavior of the sliders appears to be quite different from the older versions of ACR. In Real World Camera Raw with Adobe Photoshop CS4, Jeff Schewe states that if one moves the detail slider all the way to the right, the results are very similar but not exactly the same that would be obtained with the unsharp mask.
The following observations are likely nothing new to you, but may be of interest to others. The slanted edge target (a black on white transition at a slight angle) is an ISO certified method of determining MTF and is used in Imatest. Here is an example with the Nikon D3 using ACR 6.1 without sharpening (far right), with and with ACR sharpening set to 50, 1, 50 [amount, radius, detail] (middle) and with deconvolution sharpening using Focus Magic with a blur width of 2 pixels and amount of 100%. The images used for measurement are cropped. so the per picture height measurements are for the cropped images.
One can analyze the black-white transition with Imatest, which determines the pixel interval for a rise in intensity at the interface from 10 to 90%. Results are shown for Focus Magic and ACR sharpening with the above settings. The results are similar. With real world images with this camera (previously posted in a discussion with Mark Segal), I have not noted much difference between optimally sharpened images using ACR and Focus Magic, contrary to the results reported by Diglloyd using the Richardson-Lucy algorithm. Perhaps the Focus Magic algorithm is inferior to the RL. Diglloyd used Smart Sharpen for comparison and did not test ACR 6 sharpening.
One can look at the effect of the detail slider by using ACR sharpening settings of 100, 1, 100 (left) and 100, 1, 0 (right). The detail setting of zero dampens the overshoot.