Things may get interesting b/c people are just patching with the removal tool or updating virus definitions. I know of at least 3 programs right now that have been built in a few days that have become remote admin tools. Who's to say that everyone will go and update window's. As that one security guy said about his mother, some people just won't do it. Now you multiply that across the world and say you have 4000-5000 PCs that are not updated and infected with msblast.exe. Launching a DDOS attack on a scale that large could definitly cause some serious problems. And who's also to say someone doesn't take advantage of this, poses as the original author of the virus and codes in an extra few lines of maliciuos code, you could have all newer versions of windows PC's formatting they're (or their, not sure) HD's. Kinda hard to update your version of windows when each time you get it installed, it starts formatting your drive before you can download the vulnerability.
Plus there are so many people that can and are starting to mutate this virus. And with a huge DDOS attack being launched on the 16th, things could get very interesting for window's users.
EDIT: Did I mention some business' are just too damn lazy to update they're software. I know I had to go to each and every damn new machine and update it myself as the users just didn't listen to me (sys admin/security man)
