From most people, we would ignore the talk. But this info comes from Kevin Rose, founder of digg.com who also had accurate word of the Core 2 Duo Macbook and Macbook Pros.
This is what we know about the iPhone, according to a recent Rose
• Coming in January to all providers
• 2 batteries (1 MP3, 1 Phone)
• 2 capacities (4GB & 8GB)
• Prices will run $249 & $449
• Flash memory (surprise)
• Slide out keyboard
• Touchscreen (on outside)
• "Cool" OS
So there you have it. Sounds good to me. Pun not intended, but also not revised.