Some believe that their is a split forming in the Tea Party movement. Head over to http://www.pjtv.com/?cmd=video&video-id=1813 and click on the 'Tea Party Poopers?' tab directly underneath the video player on the right side. The split seems to come from some of the leaders of the movement 'calling out' Obama (Berman Post: Tea Party Leaders 'Call Out' Obama).
I am not concerned. The very grass roots nature of the movement seems to me to cut against the notion of a unified movement that can split. Tea Party protesters have the same basic goals. That is less government spending, more fiscal responsibility, keep taxes low... . Just because they have the same goals does not mean that everyone is going to use the same methods to accomplish them. I do not think a difference in methods this minor, especially because I doubt Obama will actually meet with the people that 'called him out', will cause any real split. I also do not think a minor split presents much of a problem.
Final verdict - I do not see a significant split at this point (beyond the extremely localized nature of the movement anyways), and I do not see a minor split as a problem should one develop.