According to an AT&T internal email, sales of the new iPhone 3G S broke a record the first day it went on sale. Some milestones the company said it achieved included best-ever sales day in the company's retail stores, most transactions processed via the operator's IT systems in a single day and the largest order day in the company's history on its website. Article [1]
Links:
[1] http://digitaldaily.allthingsd.com/20090702/iphone-3gs-att-memo/