I wonder how many people would actually use steadystate if it was on offer. Most folks I know create backup images regularly and restore from them. For the IT admins, steadystate-like calm can be achieved by locking down the computer with gpedit policies, MS has a full reference sheet on one of its pages for those.
Appsnap is a difficult idea given the large variety of apps people use. But yes although the whole world knows by now that the "base system device" is the card reader, its intriguing why MS didnt bother to tie up with the manufacturers for those drivers considering it spent a fortune adding an enormous no. of drivers to the OS.