Joshua Topolsky at This Is My Next has shared some last-minute iOS 5 rumors from a reliable source, including revamped messaging and notifications plus widgets and new lock screen functions.
Josh's source(s) reports that Apple has readied its own MMS/SMS protocol which will route messages to the appropriate iOS users. Carriers, watch out.
Also, incoming notifications will no longer pop up and interrupt what you're doing, but slide unobtrusively from the top of the screen and await input from the user. Josh also reports
