I have a theory about Twitter and the iPhone in that once Apple’s push service is released (presumably with 3.0) it will pave the way for things like a Twitter client which informs you of new tweets in much the same way that the iPhone itself does with SMS messages. Therefore I can see the future being that iPhone users will increase their tweeting even more, thus not having to use SMS which has 2 advantages. One is that Twitter is free, and two is that if you happen to be on your PC rather than have your phone in front of you then you can receive messages or send messages using your favourite desktop Twitter client.

The problem comes of course that you still have to have polling in there somewhere because Twitter don’t have a push notification themselves, but perhaps Twitter will try to cash in and create their own iPhone app and add Apple’s push service to their own backend service.

Who knows…