No one-touch dialing (two touches at a minimum)
Vibrate mode is included
Voice dialing is not mentioned as a feature, though it's not specifically excluded either
Users can have a voice conversation whilst browsing the web "when WiFi access is available"
iPhone users will not be able to conduct IM conversations with instant messaging users
Emailing videos and pictures are a go, MMS is not supported
MEdia Mail won't be used for ringtone and answertone downloads
MEdia Net, MobiTV, and Cellular Video are (unsurprisingly) not available for the iPhone
iTunes will sync iPhone with the Address Book on Macs or Outlook/Outlook Expess on PCs
No GPS or TeleNav support, sorry Google hopefuls