Comment 103 for bug 446146

"Fix Released" means that a package that fixes the bug has been released in karmic-updates, and your Update Manager will be able to download and install the update: the problem is solved and we can forget about the bug.
"Fix Committed" means that a patch that fixes the problem has been created and possibly some packages have been built, but these packages have not been approved and have not made their way to the official karmic-update repository yet.
The second case seems to me to be our case.
If we mark this bug as "Fix Released", distribution maintainers will think it's a problem completely solved, forget about it, and not take any further action: an updated package will not be released.
Please don't change the status to "Fix Released" unless you really know what you are doing, especially if you joined launchpad just a few days ago =).
You can keep a bookmark to https://edge.launchpad.net/ubuntu/karmic/+source/linux/ to check when a new kernel package has been released.