Not to be nit-picky, but I just noticed that on both my iPhone 3G and my wife's 1st gen iPhone, both running 3.0, I'm unable to fully close out Safari and iPod by holding the home button for a few seconds in order to free up ram. Has anyone else noticed this and having the same problem? Is it a bug or was it changed on purpose? Just curious. I searched here as well as Google but couldn't find anything on it.