iPhone Build week?

[Geffen]

I just purchased my 8GB iPhone at the Apple store in my city and it appears it has a build week of 38 and in the serial number there is an S instead of the usual R that others on the forums have, Does anyone know if this is the newest shipment of iPhones?

[TheSpecialist]

It probably is. Most probable with the new firmware already on it!

[CD3660]

Looks like it's the latest.

Week 38 was last week (September 16, 2007 to September 22, 2007).

[google]

so if it says 7R##### then its 1.0.2 or older? And 7S### is the new FW 1.1.1?