In http://kojipkgs.fedoraproject.org/packages/kernel/2.6.32.1/10.fc13/ right now you can find a Fedora kernel with the latest utrace up to the minute. Coming soon to a rawhide near you (should be tomorrow).
This is a 2.6.32.1-based kernel with exactly the 2.6.32/* utrace patches as you see them today in git and on people.redhat.com, including Oleg's utrace-based ptrace. If we have any more tweaks to the utrace code soon, we will build an updated rawhide kernel shortly thereafter. Thanks, Roland