What does the S in iPhone 3gs mean?

Q: What is the meaning of the S in Apple's new iPhone 3G S?

A: Apple's new phone will be available in the United States on June 19, 2009 (Friday). Apple Stores will open their doors at eight o'clock in the morning.

Software update to iPhone OS 3.0 will be available for download two days earlier on June 17 (Wednesday) from the Apple website.

The S in iPhone 3G S stands for speed.