When Apple announced iOS 5 in June, they said that one feature would be deep integration with Twitter. Basically, the idea is that you will be able to post just about anything from your device to Twitter with a tap. One barrier to this deep integration was that Twitter was reluctant to have other apps supercede it's own. That has changed. The buzz yesterday was a note from Twitter head Jack Dorsey to deveopers encouraging them to work with Twitter to make this deep integration happen.