http://twitter.com/trafficisgold Adding your Tweets to your Linkedin profile is easy to do. You no longer need third party applications to connect these two powerful social media sites.
This video will show you step by step, how to add your Tweet stream to your Linkedin profile status update.
One word of caution, if you tweet a lot you should select the option that only shows tweets that have the following #in tag (hash tag) in the tweet. Otherwise you run the risk of annoying people with your constant updates. I see this time and time again on Facebook. However facebook has a great hide feature. So if people tweet too much I just hide them.