The market has been updated and brings a few useful changes. "My Apps" has a tabbed interface and reviews are more informative (see screenshots). The "all" apps tab brings back date sorting (by last installed/updated). There are some other nice UI changes as well. You can simply install the apk like any other standard application. For those who wait, your current builds will eventually auto update.
As of 4/4/2012, the latest version is 3.5.16. Yoderk's post has a link