Want to check out the next version of Windows Update? It's called Microsoft Update, and it incorporates the best of the different update engines into a single product. To check it out, visit this link:
The old Windows Update won't go away -- this will be a new service that includes everything Windows Update has, plus components for other software updates.
For the next few weeks, this product is Beta (standard disclaimer about Beta software applies). If you decide to sign up, a new icon is added to your Start menu (Microsoft Update). Windows Update will remain, but essentially redirects to Microsoft Update if you're a member.