Online Public Relations Thoughts

Eight million people may be using Twitter, but it is still a pipedream. The question is whether all those millions will tire eventually of a stream of short messages reaching them at all hours of the day. It seems to me they will. There is usefulness in news headlines and other information that can be boiled into a short statement, but seeing a stream of snippets about other peoples' lives is eventually boring. I've been wrong before about new technology and with millions using the service, there is a good chance that I'm wrong again. But, it seems to me from a PR perspective, there are better things to do, especially since there are now ghost-twitterers sending messages on behalf of celebrity clients. How ersatz is that?