I've been reflecting on doing the same.
Glad to hear I’m not alone. I may be missing something, but I see no advantage to being registered anymore. Before, it was to have a certain voice in the primary. With the open primary, that consideration is no longer a factor. Perhaps I’ll wait until the 2012 primaries start to line up before making a decision. If the “leadership” tries to pick our candidate for us, I’ll go independent pretty darn quick.