Kevin Rose, Digg.com founder leaked some iPhone features:

http://www.youtube.com/v/LBfLjqfYKM0

Features, he said, will be there:
  • Two batteries, one for the music player and one for the phone.
  • 2 iPhone models: 4GB phone for $249 and an 8GB phone for $449.
  • GSM and CDMA networks versions.
  • Very small size.
  • Touchscreen.