So how does iPhone 3G (s) differ from iPhone 3G

Whats New:

• OS: 3.0 (preloaded) - you can upgrade your old iPhone (including 2G by paying $9.99)
• RAM has been increased from 128MB to 256MB
• Improved camera 3.15MP (as compared to 2MP) with VIDEO RECORDING @30fps
• Built in Compass
• Voice Control

Otherwise, its old iPhone 3G with few good apps (which were available to users who had jailbroken their iPhones/iPods)

Reference(s): http://theappleblog.com

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