The Integration and convergence of Twitter into smart phones, notebooks and desktops, operating systems, platforms, browsers, software, apps, and other devices, that allow for seamless tweeting of any content as republication from a user's Twitter account. (ie mashup of Twitter and Integration)
Twittergration is becoming more and more common as Apps and content providers seek to push what they're pushing.
When a busy high profile public figure such as, let's say, Barack Obama gets a Twitter account, it's pretty much granted that he doesn't have the time to actually 'tweet' - therefore the situation calls for a GHOST TWITTERER (similar to a ghost writer), a person in that person's staff, who does the tweeting for him (her).