Not personally.
Are you having a kernel issue?
Do you want to join the development team?
Do you want Linus's autograph?
More info might help us, help you find an answer.
Actually, if you are having a problem with how a kernel seems to behave in your distro (Ubuntu, based on your sig), it's better to start with the distro's bug launchpad page. Each distro does some degree of customization.