My guess:<p>Killer phone hardware (improved speed, battery, display, cameras)<p>Nice iPhone OS tweaks (better workflow via faux multitasking, a background iChat client, some really nifty iPad features)<p>Some sort of content partnerships on the iTunes / AppleTV side<p>...and that's it.<p>Still AT&T only, still tied to iTunes, still locked down platform and app store, still no flash.<p>And I will be disappointed. But holding off to buy a new phone until I see what he's got!