Personally, I'm hoping for turn by turn GPS ^
"The 3G iPhone has no doubt had a bumpy introduction to the market. Signal issues, system crashes and other glitches have plagued users. Most recently, a glaring security flaw allowed people to bypass the password lock code and gain access to the iPhone's contact list. Firmware update 2.1, believed to be announced at tomorrow's Apple event, might fix everything."
http://www.informationweek.com/blog/...iphone_fi.html